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General Chemistry MCQ

1. What is the mass percentage of a solution?

The percentage by weight of a solution.

The percentage of a solution that is made up of solute.

The percentage by volume of a solution.

The percentage by mass of solute contained in a solution.

Answer

Correct Answer: The percentage by mass of solute contained in a solution.

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2. What does "mass percentage parts per hundred parts of the total, by mass" mean?

The percentage of a substance in a sample that is made up of the atoms of that element.

The amount of space that a substance occupies expressed as a percentage of the total volume of the sample.

The amount of a substance in a sample expressed as a percentage of the total mass of the sample.

The percentage of a sample that is made up of atoms of that element.

Answer

Correct Answer: The amount of a substance in a sample expressed as a percentage of the total mass of the sample.

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3. What does the phrase "parts per hundred parts" mean?

Parts per billion

Mass percentage

Percentage of parts

Parts per million

Answer

Correct Answer: Mass percentage

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4. Which of the following is not a part of the mass number?

Electrons

Nucleus

Protons

Neutrons

Answer

Correct Answer: Electrons

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5. What is Mass Defect?

The average mass of a nucleus

The total number of nucleons in an atom

The sum of the masses of all the electrons in an atom

The total nucleon mass minus the atomic mass of a nucleus

Answer

Correct Answer: The total nucleon mass minus the atomic mass of a nucleus

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6. What is the total nucleon mass minus the atomic mass of a nucleus?

Binding energy

Mass defect

Nuclear force

Proton

Answer

Correct Answer: Mass defect

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7. What is the definition of mass?

The quantity of matter in a material

The amount of space an object occupies

The force required to move an object

The amount of gravity an object has

Answer

Correct Answer: The quantity of matter in a material

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8. What is the major product formed by the addition of H-Cl to an alkene?

The product with the chloride on the less substituted carbon

There is no difference in products when H-Cl is added to an alkene

The product with the chloride on the more substituted carbon

Markownikoff's rule does not apply to H-Cl addition to alkene

Answer

Correct Answer: The product with the chloride on the less substituted carbon

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9. What does a Manometer measure?

The weight of a gas or liquid in a sealed vessel

The pressure of a gas or liquid in a sealed vessel

The temperature of a gas or liquid in a sealed vessel

The amount of a gas or liquid in a sealed vessel

Answer

Correct Answer: The pressure of a gas or liquid in a sealed vessel

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10. What are the representative elements?

The questions on this quiz

The elements in an A column of the periodic table

The noble gases

The metalloids

Answer

Correct Answer: The elements in an A column of the periodic table

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11. What are the allowed values of magnetic quantum numbers?

The integers from -l to 0

The integers from -l to +l

The even integers from -l to l

The integers from 0 to l

Answer

Correct Answer: The integers from -l to +l

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12. What is the magic number for a completed shell of neutrons?

Answer

Correct Answer: 28

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13. What is the cathode in a Lithium-Iodine battery?

Voltaic cell

Iodine

Lithium metal

An I2 complex

Answer

Correct Answer: An I2 complex

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14. What is the anode in a Lithium-Iodine battery?

Voltaic Cell

Lithium-Iodine

Lithium Metal

I2 Complex

Answer

Correct Answer: Lithium Metal

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15. How many liters are in a cubic decimeter?

10 liters

1 liter

1000 liters

100 liters

Answer

Correct Answer: 1 liter

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16. What is liquid matter?

A substance that has a fixed volume but no fixed shape.

A substance that has neither a fixed volume nor a fixed shape.

A substance that has a fixed shape but no fixed volume.

A substance that has both a fixed volume and a fixed shape.

Answer

Correct Answer: A substance that has a fixed volume but no fixed shape.

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17. Which of the following is not a property of a liquid?

Has a fixed volume

Is a relatively incompressible fluid

Is a gas

Has no fixed shape

Answer

Correct Answer: Has a fixed volume

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18. What is the process in which a substance that is normally a gas changes to the liquid state?

Evaporation

Melting

Sublimation

Liquefaction

Answer

Correct Answer: Liquefaction

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19. What is Liquefaction?

The process in which a substance that is normally a liquid changes to the gas state.

The process in which a substance that is normally a gas changes to the liquid state.

The process in which a substance that is normally a solid changes to the liquid state.

The process in which a substance that is normally a solid changes to the gas state.

Answer

Correct Answer: The process in which a substance that is normally a gas changes to the liquid state.

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20. What does the word "Lipids" refer to?

A type of soil

Biological substances like fats and oils that are soluble in organic solvents, such as chloroform and carbon tetrachloride.

A element on the periodic table

A noun meaning "the study of lips"

Answer

Correct Answer: Biological substances like fats and oils that are soluble in organic solvents, such as chloroform and carbon tetrachloride.

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21. What is the definition of linkage isomers?

Isomers of a complex that differ in the number of ligands bonded to the metal atom.

Isomers of a complex that differ in the atom of a ligand that is bonded to the metal atom.

Isomers of a complex that differ in the arrangement of atoms in the molecule.

Isomers of a complex that differ in the type of ligand bonded to the metal atom.

Answer

Correct Answer: Isomers of a complex that differ in the atom of a ligand that is bonded to the metal atom.

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22. What is the difference between linkage isomers?

The shape of the complex

The atom of a ligand that is bonded to the metal atom

The number of ligands bonded to the metal atom

The nature of the ligand atoms bonded to the metal atom

Answer

Correct Answer: The atom of a ligand that is bonded to the metal atom

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23. What is linear geometry?

A molecular geometry in which all atoms line up along a straight line

A mathematical model that specifies relationships among points, lines, and planes

A two-dimensional coordinate system

A three-dimensional coordinate system

Answer

Correct Answer: A molecular geometry in which all atoms line up along a straight line

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24. What is a line spectrum?

A spectrum that is made up of a single color of light

A spectrum that contains all colors of light

A spectrum that contains no color of light

A spectrum showing only certain colors or specific wavelengths of light

Answer

Correct Answer: A spectrum showing only certain colors or specific wavelengths of light

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25. What is the limiting reactant?

The reactant that is slowly consumed when a reaction goes to completion.

The reactant that is not entirely consumed when a reaction goes to completion.

The reactant that is entirely consumed when a reaction goes to completion.

The reactant that is partially consumed when a reaction goes to completion.

Answer

Correct Answer: The reactant that is entirely consumed when a reaction goes to completion.

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26. What is a ligand?

Theossilicate mineral

A light-sensitive layer at the back of the eye

A protein found in muscles

A Lewis base that bonds to a metal ion to form a complex ion.

Answer

Correct Answer: A Lewis base that bonds to a metal ion to form a complex ion.

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27. What does the Lewis electron-dot symbol represent?

Atomic number of an element

Kinetic energy of an atom

Metals on the periodic table

Electrons in the valence shell of an atom

Answer

Correct Answer: Electrons in the valence shell of an atom

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28. What is the Lewis electron-dot formula?

A formula in which electrons are used to represent valence protons

A formula in which dots are used to represent valence electrons

A formula in which electrons are used to represent valence electrons

A formula in which electrons are used to represent valence neutrons

Answer

Correct Answer: A formula in which dots are used to represent valence electrons

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29. What is a Lewis base?

A species with an unpaired electron that can accept an electron from another species.

A species that can form a covalent bond by donating an electron pair to another species.

A species that can form a covalent bond by sharing an electron with another species.

A substance that increases the pair of electrons in a molecule.

Answer

Correct Answer: A species that can form a covalent bond by donating an electron pair to another species.

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30. What is the Lewis base definition?

A species that can form a covalent bond by donating an electron pair to another species.

A species that can form a covalent bond with another species by sharing an electron pair.

Answer

Correct Answer: A species that can form a covalent bond by donating an electron pair to another species.

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31. What is a Lewis acid?

A species that can form a covalent bond by sharing an electron pair with another species

A negatively charged ion

A species that can form a covalent bond by accepting an electron pair from another species

A positively charged ion that can accept an electron pair

Answer

Correct Answer: A species that can form a covalent bond by accepting an electron pair from another species

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32. Which of the following is not an effect of a Levorotatory compound?

Increases the intensity of light

Decreases the intensity of light

Rotates the plane of polarized light to the right

Rotates the plane of polarized light to the left

Answer

Correct Answer: Rotates the plane of polarized light to the right

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33. What is the anode in a lead storage cell made of?

Lead Alloy Grids

Lead

Lead Dioxide

Spongy lead

Answer

Correct Answer: Spongy lead

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34. What is the function of lead storage cell?

It is used to store electrical energy

It is used as a component in batteries

It is a voltaic cell that consists of electrodes of lead alloy grids

It is used as a component of some electronic devices

Answer

Correct Answer: It is a voltaic cell that consists of electrodes of lead alloy grids

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35. What is Le Châtelier's principle?

The system remains in equilibrium when disturbed

The system changes in equilibrium composition in a way that tends to counteract this change of variable

The system shifts in equilibrium composition in a way that tends to counteract this change of variable

The system changes in equilibrium composition in a way that tends to favor this change of variable

Answer

Correct Answer: The system shifts in equilibrium composition in a way that tends to counteract this change of variable

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36. When a system in equilibrium is disturbed, it shifts in equilibrium composition in a way that _____.

Tends to counteract this change of variable

Decreases the change of variable

Increases the change of variable

Is not affected by the change of variable

Answer

Correct Answer: Tends to counteract this change of variable

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37. What is the law of multiple proportions?

The masses of one element in different compounds are in ratios of small whole numbers.

The masses of one element in different compounds are in ratios of decimal numbers.

The masses of one element in different compounds are in ratios of large whole numbers.

The masses of one element in different compounds are in ratios of irrational numbers.

Answer

Correct Answer: The masses of one element in different compounds are in ratios of small whole numbers.

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38. What does the equilibrium-constant expression Kc represent?

The percent yield of a reaction

The equilibirum concentrations of a reaction

The forward and reverse rates of a reaction

The heat of a reaction in Kelvin

Answer

Correct Answer: The percent yield of a reaction

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39. What is the law of definite proportions also known as?

The law of reciprocal proportions

The law of conservation of mass

The law of multiple proportions

The law of constant composition

Answer

Correct Answer: The law of constant composition

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40. What is the law of conservation of mass?

The law of conservation of mass states that the total mass is created during a chemical change.

The law of conservation of mass states that the total mass is recycled during a chemical change.

The law of conservation of mass states that the total mass is destroyed during a chemical change.

The law of conservation of mass states that the total mass remains constant during a chemical change.

Answer

Correct Answer: The law of conservation of mass states that the total mass remains constant during a chemical change.

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41. Does the total quantity of energy remain constant?

Yes

Answer

Correct Answer: Yes

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42. Which of the following is NOT true about the law of combining volumes?

Gases at the same temperature and pressure react with one another in volume ratios of small whole numbers.

The law of combining volumes is also known as Dalton's law of partial pressures.

Gases at different temperatures and pressures react with one another in volume ratios of small whole numbers.

Answer

Correct Answer: Gases at the same temperature and pressure react with one another in volume ratios of small whole numbers.

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43. What is Law?

A branch of medicine

A concise statement or mathematical equation about a fundamental relationship or regularity of nature

A branch of philosophy

A branch of theology

Answer

Correct Answer: A concise statement or mathematical equation about a fundamental relationship or regularity of nature

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44. What is Lattice Energy?

The amount of heat required to raise the temperature of one gram of a substance one degree Celsius

The interaction between ions of opposite charges in an ionic solid

The change in energy that occurs when an ionic solid is separated into isolated ions in the gas phase

Answer

Correct Answer: The change in energy that occurs when an ionic solid is separated into isolated ions in the gas phase

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45. What is the word laser an acronym for?

Light amplification by stimulated emission of infrared light

Light amplification by stimulated emission of radiation

Light amplification by stimulated emission of blue light

Light amplification by stimulated emission of red light

Answer

Correct Answer: Light amplification by stimulated emission of radiation

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46. What is the name for the first row of elements at the bottom of the periodic table?

Transition metals

Alkali metals

Lanthanides

Alkaline earth metals

Answer

Correct Answer: Lanthanides

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47. What is the kinetic-molecular theory?

A branch of classical mechanics that studies the motion of particles

The interaction of molecules with heat and light energy

The theory that a gas consists of molecules in constant random motion

The study of motion of particles in a system

Answer

Correct Answer: The theory that a gas consists of molecules in constant random motion

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48. What is Kinetic energy?

The energy associated with an object by virtue of its motion

A measure of an object's resistance to changes in its speed or direction of motion.

The force that opposes the relative motion of two bodies in contact

The rate of change of momentum of a body

Answer

Correct Answer: The energy associated with an object by virtue of its motion

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49. What is the SI base unit for mass?

Kilogram

Ampere

Second

Meter

Answer

Correct Answer: Kilogram

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50. Equal to about how many pounds?

3.3 pounds

1.1 pounds

4.4 pounds

2.2 pounds

Answer

Correct Answer: 2.2 pounds

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51. What is the name of the functional group present in Ketone?

Alkyne group

Alcohol group

Hydrocarbon group

Carbonyl group

Answer

Correct Answer: Carbonyl group

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52. What is the name given to a compound containing a carbonyl group with two hydrocarbon groups attached to it?

Alkane

Ketone

Alkyne

Alcohol

Answer

Correct Answer: Ketone

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53. What is Kelvin?

The SI base unit of temperature

The basic SI unit of length

The derived SI unit of electric potential

The derived SI unit of electric current

Answer

Correct Answer: The SI base unit of temperature

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54. What is the SI base unit of temperature?

Celsius

Fahrenheit

Kelvin

Rankine

Answer

Correct Answer: Kelvin

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55. What are isotopes?

Atoms whose nuclei have the same atomic number but different mass numbers

Atoms that are the same as each other in every way

Atoms with different amounts of protons

Atoms with different atomic numbers

Answer

Correct Answer: Atoms whose nuclei have the same atomic number but different mass numbers

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56. Isotopes are atoms with different atomic numbers but the same mass numbers.

True

False

Answer

Correct Answer: False

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57. What is the quantity of a substance in a mixture determined by using isotope dilution technique?

The purity of the substance in the mixture.

The quantity of the substance in the mixture.

The total volume of the solution.

The concentration of the substance in the solution.

Answer

Correct Answer: The concentration of the substance in the solution.

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58. What are isomers?

Two compounds that have different molecular formulas

Compounds of the same molecular formula but with different arrangements of the atoms

Two compounds that have the same molecular formula and the same chemical structures

Two compounds that have the same molecular formula but different chemical structures

Answer

Correct Answer: Compounds of the same molecular formula but with different arrangements of the atoms

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59. What does isoelectronic refer to?

Atoms of the same element

Compounds with the same molecular formula

Elements in the same period of the periodic table

Different species that have the same number and configuration of electrons

Answer

Correct Answer: Different species that have the same number and configuration of electrons

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60. What is an ion-selective electrode?

A device used to measure pH

An electrode whose cell potential depends on the concentration of a particular ion in solution

A device used to measure ion concentration in solution

A device used to measure potential difference across a cell membrane

Answer

Correct Answer: An electrode whose cell potential depends on the concentration of a particular ion in solution

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61. What is ionization energy?

The energy needed to remove an electron from an atom (or molecule)

The energy needed to add an electron to an atom (or molecule)

The energy needed for a chemical reaction to take place

The energy needed to break apart a molecule

Answer

Correct Answer: The energy needed to remove an electron from an atom (or molecule)

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62. What is an ionic solid?

A solid that does not conduct electricity

A solid that consists of cations and anions held together by the electrical attraction of opposite charges (ionic bonds)

A solid with a regular, repeating three-dimensional arrangement of atoms

A solid with a low melting point

Answer

Correct Answer: A solid that consists of cations and anions held together by the electrical attraction of opposite charges (ionic bonds)

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63. What is the Ionic radius?

The spherical region around the nucleus of an ion within which the electrons are most likely to be found

The size of an ionic compound

The size of an atom

The size of an ion

Answer

Correct Answer: The spherical region around the nucleus of an ion within which the electrons are most likely to be found

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64. What is an ionic compound?

A compound composed of atoms

A compound composed of nuclei and electrons

A compound composed of cations and anions

A compound composed of protons and neutrons

Answer

Correct Answer: A compound composed of cations and anions

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65. What is an ionic bond?

A covalent bond.

A chemical bond formed by the electrostatic attraction between positive and negative ions.

A chemical bond between two molecules.

A chemical bond between two atoms.

Answer

Correct Answer: A chemical bond formed by the electrostatic attraction between positive and negative ions.

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66. What is the ion product?

The average of ion concentrations in a solution

The product of the pH and the pOH

The product of ion concentrations in a solution

The sum of ion concentrations in a solution

Answer

Correct Answer: The product of ion concentrations in a solution

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67. What is the process of exchanging one kind of ion in a water solution with another called?

Diffusion

Ion exchange

Evaporation

Condensation

Answer

Correct Answer: Ion exchange

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68. What is an ion?

A molecule consisting of two or more atoms held together by chemical bonds.

Electrically charged particle resulting from the separation of atoms in a chemical reaction.

An atom that has gained or lost one or more electrons, making it electrically charged.

Electrically charged particle obtained from an atom or a chemically bonded group of atoms by adding or removing electrons.

Answer

Correct Answer: Electrically charged particle obtained from an atom or a chemically bonded group of atoms by adding or removing electrons.

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69. What is the International System of Units?

The metric system

The way that countries measure trade

A particular choice of metric units

A type of measuring system used in the United States

Answer

Correct Answer: A particular choice of metric units

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70. What is the full name of the International System of Units?

International System of Units

Metric Units

International Organization for Standardization

General Conference of Weights and Measures

Answer

Correct Answer: International System of Units

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71. What is the internal energy of a system?

The sum of kinetic and potential energies of the particles making up a system

The sum of only potential energies of the particles making up a system

The sum of only kinetic energies of the particles making up a system

The difference of kinetic and potential energies of the particles making up a system

Answer

Correct Answer: The sum of kinetic and potential energies of the particles making up a system

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72. What is Internal Energy?

The sum of the kinetic energies of the particles in a system

The sum of the kinetic and potential energies of the particles making up a system

A measure of the average kinetic energy of the particles in a system

The average kinetic energy of the particles in a system

Answer

Correct Answer: The sum of the kinetic and potential energies of the particles making up a system

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73. What are intermolecular forces?

The forces of repulsion between molecules of the same kind

The forces of attraction between molecules of different kinds

The forces of interaction between molecules

The forces of attraction between molecules of the same kind

Answer

Correct Answer: The forces of interaction between molecules

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74. What is the Integrated rate law?

A mathematical relationship between concentration and time.

A law that states that the rate of a chemical reaction is proportional to the concentration of the reactant.

The rate law for a zero order reaction.

The rate law for a first order reaction.

Answer

Correct Answer: A mathematical relationship between concentration and time.

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75. What are inorganic compounds?

Compounds composed of only nitrogen.

Compounds composed of carbon and hydrogen.

Compounds composed of only carbon.

Compounds composed of elements other than carbon.

Answer

Correct Answer: Compounds composed of elements other than carbon.

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76. What is another name for Inner transition elements?

Elements with a partially filled f subshell in common oxidation states

Metals

Elements in a row

Elements in a column

Answer

Correct Answer: Elements with a partially filled f subshell in common oxidation states

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77. What are the elements with a partially filled f subshell in common oxidation states?

Lanthanides

Inner transition elements

Metalloids

Halogens

Answer

Correct Answer: Inner transition elements

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78. What are the elements with a partially filled f subshell in common oxidation states called?

Noble gases

Inner transition elements

Halogens

Metalloids

Answer

Correct Answer: Inner transition elements

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79. What are the two rows of elements at the bottom of the periodic table called?

Actinides

Lanthanides

Noble gases

Inner transition elements

Answer

Correct Answer: Inner transition elements

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80. What is another name for the inner transition elements?

The bottom two rows of the periodic table

Transition metals

Noble gases

Alkali metals

Answer

Correct Answer: The bottom two rows of the periodic table

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81. What is an Initiator?

A monomer

A compound that produces free radicals in a reaction for the preparation of an addition polymer

A catalyst

An agent that deactivates a catalyst

Answer

Correct Answer: A compound that produces free radicals in a reaction for the preparation of an addition polymer

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82. What is a free radical?

An atom or molecule with an unpaired valence electron

An organic compound that contains a halogen atom

A hydrocarbon that contains one or more double or triple bonds between carbon atoms

A molecule in which one or more atoms have an octet of electrons

Answer

Correct Answer: An atom or molecule with an unpaired valence electron

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83. What does immiscible mean?

Liquids and solids

Fluids that are the same

Fluids that do not mix but form separate layers

Fluids that mix together

Answer

Correct Answer: Fluids that do not mix but form separate layers

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84. What is the meaning of "immiscible"?

Form

Mix

Do not mix

Separate

Answer

Correct Answer: Do not mix

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85. What is an ideal solution?

A dilute solution

An unsaturated solution

A solution of two or more substances each of which follows Raoult?s law.

A saturated solution

Answer

Correct Answer: A solution of two or more substances each of which follows Raoult?s law.

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86. What is the ideal gas law?

The equation V = nRT

The equation PV = RT

The equation PV = nRT

The equation P = nRT

Answer

Correct Answer: The equation PV = nRT

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87. What is a Homonuclear diatomic molecule?

A molecule composed of three like nuclei

A molecule composed of three dissimilar nuclei

A molecule composed of two like nuclei

A molecule composed of two dissimilar nuclei

Answer

Correct Answer: A molecule composed of two like nuclei

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88. What are homonuclear diatomic molecules composed of?

Two like nuclei

Electrons

Protons and neutrons

Two different nuclei

Answer

Correct Answer: Two like nuclei

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89. What is a homologous series?

A series of compounds in which one compound is the same as the preceding one

A series of compounds in which one compound differs from a preceding one by a fixed group of atoms

Answer

Correct Answer: A series of compounds in which one compound differs from a preceding one by a fixed group of atoms

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90. What is a homogeneous mixture?

A mixture of two or more different compounds

A uniform mixture in its properties throughout given samples

A mixture that is not uniform in its properties throughout given samples

A mixture of two or more different elements

Answer

Correct Answer: A uniform mixture in its properties throughout given samples

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91. What is homogeneous equilibrium?

An equilibrium that is established very quickly

An equilibrium that involves reactants and products in a single phase

An equilibrium in which the concentrations of the reactants and products remain constant over time

An equilibrium that is not affected by changes in temperature or pressure

Answer

Correct Answer: An equilibrium that involves reactants and products in a single phase

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92. What is homogeneous catalysis?

The use of two catalysts in the same phase to promote a reaction

The use of a catalyst in the opposite phase as the reacting species

The use of a catalyst in the same phase as the reacting species

The use of two catalysts in different phases to promote a reaction

Answer

Correct Answer: The use of a catalyst in the same phase as the reacting species

Note: This Question is unanswered, help us to find answer for this one

93. What is a high-spin complex ion?

A complex ion in which there is minimum pairing of electrons in the orbitals of the metal atom

A complex ion in which there is maximum pairing of electrons in the orbitals of the metal atom

A complex ion in which the metal atom has a low charge

A complex ion in which the metal atom has a high charge

Answer

Correct Answer: A complex ion in which there is minimum pairing of electrons in the orbitals of the metal atom

Note: This Question is unanswered, help us to find answer for this one

94. What is the crystal structure of hcp?

Hexagonal unit cell

Tetragonal unit cell

Orthorhombic unit cell

Cubic unit cell

Answer

Correct Answer: Hexagonal unit cell

Note: This Question is unanswered, help us to find answer for this one

95. What are heteronuclear diatomic molecules?

Molecules composed of two different elements in different atomic states

Molecules composed of two different nuclei

Molecules composed of water and nitrogen

Molecules composed of two identical nuclei

Answer

Correct Answer: Molecules composed of two different nuclei

Note: This Question is unanswered, help us to find answer for this one

96. What is a heterogeneous mixture?

A mixture that consists of physically distinct parts, each with different properties.

A mixture of two or more elements in which each element has the same atomic number

A mixture that does not have uniform composition throughout

A mixture consisting of two or more different kinds of atoms

Answer

Correct Answer: A mixture that consists of physically distinct parts, each with different properties.

Note: This Question is unanswered, help us to find answer for this one

97. A heterogeneous mixture consists of ____.

Parts that are not distinct

Parts that have the same properties

Physically distinct parts

Parts that are not physically separate

Answer

Correct Answer: Physically distinct parts

Note: This Question is unanswered, help us to find answer for this one

98. What is Heterogeneous equilibrium?

Equilibrium that involves reactants and products in more than one phase

When the concentrations of the reactants and products remain constant over time

A process where the rate of the forward reaction is equal to the rate of the reverse reaction

A state of balance between opposing forces or influences

Answer

Correct Answer: Equilibrium that involves reactants and products in more than one phase

Note: This Question is unanswered, help us to find answer for this one

99. What is heterogeneous catalysis?

The study of the rate of formation of products of a reaction between two substances in aqueous solution

The study of reactions in which one of the reactants is in the gas phase

The study of reaction rates involving solid catalysts

The use of a catalyst that exists in a different phase from the reacting species

Answer

Correct Answer: The use of a catalyst that exists in a different phase from the reacting species

Note: This Question is unanswered, help us to find answer for this one

100. What is Hess's law?

The reaction will occur more slowly at a lower temperature.

The reaction will double if the temperature is doubled.

The equilibirium constant is unaffected by temperature.

The enthalpy change for the overall equation equals the sum of the enthalpy changes for the individual steps.

Answer

Correct Answer: The enthalpy change for the overall equation equals the sum of the enthalpy changes for the individual steps.

Note: This Question is unanswered, help us to find answer for this one

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