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General Chemistry MCQ

1. What is the relationship betweenvolume and absolute temperature of an ideal gas, at constant pressure?

Directly Proportional

Inversely Proportional

Cannot be determined from the information given

Unrelated

Answer

Correct Answer: Directly Proportional

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2. What is charge?

An electrical charge

A conserved property of subatomic particles determining their mass

A conserved property of subatomic particles determining their flavor interactions

A conserved property of subatomic particles determining their gravitational interactions

Answer

Correct Answer: An electrical charge

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3. What does charge determine?

Their nuclear size

Their nuclear interactions

Their electromagnetic interaction

Their nuclear mass

Answer

Correct Answer: Their electromagnetic interaction

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4. What is a chain reaction?

Reaction that does not release any energy

Set of chemical reactions in which products become reactants of another reaction.

Single chemical reaction

Reaction that occurs too slowly to be observed

Answer

Correct Answer: Set of chemical reactions in which products become reactants of another reaction.

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5. What is a set of chemical reactions in which products become reactants of another reaction called?

Chain reaction

Double displacement reaction

Single displacement reaction

Decomposition reaction

Answer

Correct Answer: Chain reaction

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6. What does the cetane number value describe?

The viscosity of oil

The octane rating of gasoline

The energy content of coal

The combustion quality of diesel fuel

Answer

Correct Answer: The combustion quality of diesel fuel

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7. What is the cetane number?

Value that describes the combustion quality of diesel fuel, based on the speed of injection and ignition.

Value that describes the quality of diesel fuel, based on the delay between injection and ignition.

Value that describes the combustion quality of gasoline, based on the delay between injection and ignition.

Value that describes the combustion quality of diesel fuel, based on the delay between injection and ignition.

Answer

Correct Answer: Value that describes the combustion quality of diesel fuel, based on the delay between injection and ignition.

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8. What is the element symbol for cerium?

Answer

Correct Answer: Ce

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9. What is the atomic number of cerium?

Answer

Correct Answer: 58

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10. What is the boiling point of water on the Celsius temperature scale?

75°C

50°C

0°C

100°C

Answer

Correct Answer: 100°C

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11. What are the freezing and boiling points of water in Celsius temperature scale?

32°F and 212°F

-17.8°C and 85°C

1.8°C and 85.6°C

0°C and 100°C

Answer

Correct Answer: 0°C and 100°C

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12. What is an ion?

An atom with a positive electrical charge

An atom with a positive or negative electrical charge

An atom with a negative electrical charge

A positively charged atom

Answer

Correct Answer: An atom with a positive or negative electrical charge

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13. What is a vacuum tube with a source of electrons, a fluorescent screen, and means of accelerating and deflecting the electron beam called?

Cathode ray tube

Photoconductive tube

Electromagnetic tube

Plasma display panel

Answer

Correct Answer: Cathode ray tube

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14. What is the cathode?

Electrode where oxidation occurs

The negative electrode

Electrode where reduction occurs

The positive electrode

Answer

Correct Answer: Electrode where reduction occurs

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15. What is catenation?

A device used to measure small lengths

The study of cats

A type of carbon

The binding of an element to itself via covalent bonds, forming a chain or ring.

Answer

Correct Answer: The binding of an element to itself via covalent bonds, forming a chain or ring.

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16. Which of the following is true about catenation?

The formation of an ionic bond between two atoms

The sharing of electrons between two atoms

A process that involves breaking covalent bonds

Binding of an element to itself via covalent bonds, forming a chain or ring

Answer

Correct Answer: Binding of an element to itself via covalent bonds, forming a chain or ring

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17. What does a catalyst do?

Decrease the activation energy

Remain unchanged throughout the reaction

Hinder the reaction

Increase the activation energy

Answer

Correct Answer: Decrease the activation energy

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18. What is a catalyst?

Substance that decreases the chemical reaction rate by increasing its activation energy.

Substance that decreases the chemical reaction rate by decreasing its activation energy.

Substance that increases the chemical reaction rate by decreasing its activation energy.

Substance that increases the chemical reaction rate by increasing its activation energy.

Answer

Correct Answer: Substance that increases the chemical reaction rate by decreasing its activation energy.

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19. What is a carboxyl group?

Functional group consisting of a carbon double bonded to nitrogen and single bonded to a hydrogen (-CONH)

Functional group consisting of a carbon double bonded to nitrogen and single bonded to a hydroxyl (-CNOH)

Functional group consisting of a carbon double bonded to oxygen and single bonded to a hydrogen (-COH)

Functional group consisting of a carbon double bonded to oxygen and single bonded to a hydroxyl (-COOH)

Answer

Correct Answer: Functional group consisting of a carbon double bonded to oxygen and single bonded to a hydroxyl (-COOH)

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20. What is the functional group for a carbonyl?

CH3

NH2

C=O

Answer

Correct Answer: C=O

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21. What is the functional group consisting of a carbon atom double bonded to oxygen called?

Carbonyl

Carboxyl

Phosphate

Carbonate

Answer

Correct Answer: Carbonyl

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22. What is carbonate?

An element that is found in all living things

A mineral composed of carbon and oxygen

A naturally occurring radioactive element

An ion consisting of one carbon bonded to three oxygen atoms (CO32-) or a compound containing this ion.

Answer

Correct Answer: An ion consisting of one carbon bonded to three oxygen atoms (CO32-) or a compound containing this ion.

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23. What is a carbonate?

A molecule consisting of carbon and nitrogen

An ion consisting of one carbon bonded to three oxygen atoms

A compound consisting of carbon and hydrogen

An element found in the human body

Answer

Correct Answer: An ion consisting of one carbon bonded to three oxygen atoms

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24. What is the name for the element with atomic number 6?

Carbon

Nitrogen

Hydrogen

Oxygen

Answer

Correct Answer: Carbon

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25. What is the correct term for the spontaneous flow of liquid into a narrow tube or porous material?

Osmosis

Capillary action

Diffusion

Hydrolysis

Answer

Correct Answer: Capillary action

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26. What is capillary action?

The process of liquid being absorbed into a material

The process of liquid being repelled by a material

A type of liquid

The spontaneous flow of liquid into a narrow tube or porous material.

Answer

Correct Answer: The spontaneous flow of liquid into a narrow tube or porous material.

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27. What does a calorimeter measure?

Distance

Speed

Time

Heat flow

Answer

Correct Answer: Heat flow

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28. What is the amount of energy required to raise the temperature of 1 gram of water 1 degree C or K at standard pressure?

Watt

Kilocalorie

Joule

Calorie

Answer

Correct Answer: Calorie

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29. How many calories are needed to raise the temperature of 1 gram of water 1 degree C?

0.5

Answer

Correct Answer: 1

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30. What is the name of the element with atomic number 20?

Calcium

Potassium

Magnesium

Sodium

Answer

Correct Answer: Calcium

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31. What is the symbol for calcium?

Answer

Correct Answer: Ca

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32. What is caffeine?

A chemical substance artificially found in tea and coffee and added to colas.

A chemical substance naturally found in tea and coffee and not added to colas.

A chemical substance naturally found in tea and coffee and added to colas.

A chemical substance artificially found in tea and coffee and not added to colas.

Answer

Correct Answer: A chemical substance naturally found in tea and coffee and added to colas.

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33. What is the element symbol for bohrium?

Answer

Correct Answer: Bh

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34. What is a block copolymer?

Copolymer made of only two types of monomers

Copolymer formed by repeating monomer subunits.

Answer

Correct Answer: Copolymer formed by repeating monomer subunits.

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35. What are the two semicircular metal electrodes in a cyclotron called?

Cathodes

Anodes

Cyclones

Dees

Answer

Correct Answer: Dees

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36. What is Cycloalkane?

An unsaturated hydrocarbon

A cyclic saturated hydrocarbon

A linear saturated hydrocarbon

A cyclic unsaturated hydrocarbon

Answer

Correct Answer: A cyclic saturated hydrocarbon

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37. What is the general formula of cycloalkane?

CnH2n-2

CnH2n+2

C2nH2n

CnH2n

Answer

Correct Answer: CnH2n

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38. Which of the following best describes a cubic close-packed structure?

A crystal structure composed of close-packed atoms with the stacking ABCABCABCA.

A crystal structure composed of close-packed atoms with the stacking ABCDABCDAB.

A crystal structure composed of close-packed atoms with the stacking ABCBABCBAB.

A crystal structure composed of close-packed atoms with the stacking ABABABABAB.

Answer

Correct Answer: A crystal structure composed of close-packed atoms with the stacking ABCABCABCA.

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39. What is the crystal structure of ccp?

Body-centered cubic

Face-centered cubic

Face-centered tetragonal

Primitive cubic

Answer

Correct Answer: Face-centered cubic

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40. What is a crystalline solid?

An ignite

A solid composed of one or more crystals

A liquid

A gas

Answer

Correct Answer: A solid composed of one or more crystals

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41. What is a crystal system?

A mineral composed of one element

A classification of crystals

The physical property of a mineral that indicates how light is reflected off the surface of the mineral

The way in which atoms are arranged in a crystal

Answer

Correct Answer: A classification of crystals

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42. What is the maximum number of unit cells possible in a crystal system?

Answer

Correct Answer: 7

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43. What is a crystal lattice?

A three-dimensional framework of an orderly arrangement of atoms

The geometric arrangement of atoms of a molecule

The electric dipole moment of a molecule

The geometric arrangement of lattice points of a crystal

Answer

Correct Answer: The geometric arrangement of lattice points of a crystal

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44. What is the name given to the model of the electronic structure of transition-metal complexes?

Atomic orbital theory

Crystal field theory

Molecular orbital theory

Valence bond theory

Answer

Correct Answer: Crystal field theory

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45. What is the interaction of the orbitals with the electric field of the ligands called?

Crystal field splitting

Electric field splitting

Crystal field interaction

Ligand electric field interaction

Answer

Correct Answer: Crystal field splitting

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46. What is the regular three-dimensional arrangement of atoms, molecules, or ions in a crystal called?

Crystal Moon

Crystal Lattice

Crystal Sun

Crystal Star

Answer

Correct Answer: Crystal Lattice

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47. What is Crystal?

A kind of gas having a regular three-dimensional arrangement of atoms, molecules, or ions

A kind of liquid having a regular three-dimensional arrangement of atoms, molecules, or ions

A kind of plasma having a regular three-dimensional arrangement of atoms, molecules, or ions

A kind of solid having a regular three-dimensional arrangement of atoms, molecules, or ions

Answer

Correct Answer: A kind of solid having a regular three-dimensional arrangement of atoms, molecules, or ions

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48. What is the critical temperature?

The temperature at which the liquid state of a substance becomes a gas.

The temperature above which the liquid state of a substance no longer exists.

The temperature below which the liquid state of a substance no longer exists.

The temperature below which the solid state of a substance no longer exists.

Answer

Correct Answer: The temperature above which the liquid state of a substance no longer exists.

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49. What is critical pressure?

The minimum temperature that must be applied to a gas at the critical pressure to liquefy it

The maximum temperature that can be applied to a liquid at the critical pressure before it vaporizes

The vapor pressure at the critical temperature

The minimum pressure that can be applied to a liquid at the critical temperature before it vaporizes

Answer

Correct Answer: The vapor pressure at the critical temperature

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50. What is critical mass?

The smallest mass of fissionable material in which a chain reaction can be sustained.

The amount of fissionable material needed to start a chain reaction.

The amount of fissionable material needed to sustain a chain reaction.

The largest mass of fissionable material in which a chain reaction can be sustained.

Answer

Correct Answer: The smallest mass of fissionable material in which a chain reaction can be sustained.

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51. What is the smallest mass of fissionable material in which a chain reaction can be sustained?

Critical mass

Fissionable Material

Mass

Chain Reaction

Answer

Correct Answer: Critical mass

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52. How does the sum of covalent radii of atoms A and B predict an approximate A B bond length?

The sum of covalent radii of atoms A and B predicts an approximate A B bond length.

The difference of covalent radii of atoms A and B predicts an approximate A B bond length.

The average of covalent radii of atoms A and B predicts an approximate A B bond length.

The product of covalent radii of atoms A and B predicts an approximate A B bond length.

Answer

Correct Answer: The sum of covalent radii of atoms A and B predicts an approximate A B bond length.

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53. What predicts an approximate A B bond length?

The sum of covalent radii of atoms A and B

The difference of covalent radii of atoms A and B

The product of covalent radii of atoms A and B

The reciprocal of covalent radii of atoms A and B

Answer

Correct Answer: The sum of covalent radii of atoms A and B

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54. What is a covalent network solid?

A solid that consists of atoms held together in large networks or chains by metallic bonds.

A solid that consists of atoms held together in large networks or chains by ionic bonds.

A solid that consists of atoms held together in large networks or chains by hydrogen bonds.

A solid that consists of atoms held together in large networks or chains by covalent bonds.

Answer

Correct Answer: A solid that consists of atoms held together in large networks or chains by covalent bonds.

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55. What is a covalent bond?

Ionic bond

A bond between two atoms that results from the attraction of their nuclei for the shared electrons

A chemical bond formed by the sharing of a pair of electrons between atoms

A bond in which electrons are transferred from one atom to another

Answer

Correct Answer: A chemical bond formed by the sharing of a pair of electrons between atoms

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56. What is a copolymer?

An ionic polymer

A polymer consisting of two or more different monomer units

A covalent polymer

A polymer consisting of two or more identical monomer units

Answer

Correct Answer: A polymer consisting of two or more different monomer units

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57. What is the coordination number?

The number of atoms in a molecule

The number of electrons in an atom

The number of nearest-neighbor atoms of an atom

The number of protons in an atom

Answer

Correct Answer: The number of nearest-neighbor atoms of an atom

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58. What are coordination isomers?

Isomers consisting of two or more atoms that differ in the way the ligands are distributed

Isomers consisting of complex cations and complex anions

Isomers consisting of complex cations and anions that are bonded to each other

Metal atoms bonded to ligands that differ in the way the ligands are distributed

Answer

Correct Answer: Metal atoms bonded to ligands that differ in the way the ligands are distributed

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59. What is a coordination compound?

A pattern of atoms in a molecule that repeats periodically in three dimensions

A compound consisting of complex ions and other ions of opposite charge

A compound consisting of a complex species and other species of the same charge

A compound resulting from the reaction of an acid and a base

Answer

Correct Answer: A compound consisting of complex ions and other ions of opposite charge

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60. In a coordinate covalent bond, how many electrons are donated by each atom?

Answer

Correct Answer: 1

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61. What type of bond is formed when both electrons of the bond are donated by one atom?

Ionic bond

Hydrogen bond

Covalent bond

Coordinate covalent bond

Answer

Correct Answer: Coordinate covalent bond

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62. What does a conversion factor do?

Converts a quantity expressed in one system to a quantity expressed in another system

Converts a quantity expressed in one weight to a quantity expressed in another weight

Converts a quantity expressed in one unit to a quantity expressed in another unit

Converts a quantity expressed in one scale to a quantity expressed in another scale

Answer

Correct Answer: Converts a quantity expressed in one unit to a quantity expressed in another unit

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63. What is the primary function of control rods in a nuclear reactor?

To initiate a nuclear fission reaction

To speed up a nuclear chain reaction

To monitor nuclear reactions

To slow a nuclear chain reaction

Answer

Correct Answer: To slow a nuclear chain reaction

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64. What is a continuous spectrum?

A spectrum that is not visible to the naked eye

A spectrum that is not used in rainbows

A spectrum containing light of all wavelengths

A spectrum that is separated into colors

Answer

Correct Answer: A spectrum containing light of all wavelengths

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65. What is the end product of the contact process?

Sulfonic acid

Sulfinic acid

Sulfurous acid

Sulfuric acid

Answer

Correct Answer: Sulfuric acid

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66. What are constitutional isomers?

Isomers that are the same in how the atoms are joined together.

Atoms that differ in how they are joined together.

Two molecules that have the same chemical formula but a different arrangment of atoms

Isomers that differ in how the atoms are joined together.

Answer

Correct Answer: Isomers that differ in how the atoms are joined together.

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67. What is the difference between constitutional isomers and other isomers?

All isomers have the same physical and chemical properties

Constitutional isomers differ in how the atoms are joined together

Constitutional isomers have the same molecular formula but different structures

Constitutional isomers occupy different areas in space

Answer

Correct Answer: Constitutional isomers differ in how the atoms are joined together

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68. What is the conjugate base in a conjugate acid?base pair?

The species that can donate a proton

The species that cannot accept or donate a proton

The species that can accept a proton

The species that can donate a pair of electrons

Answer

Correct Answer: The species that can accept a proton

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69. What is a conjugate acid?

The species that cannot donate a proton

The species that can accept a proton

The species that can donate a proton

The species that cannot accept a proton

Answer

Correct Answer: The species that can donate a proton

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70. What is the name of the structural formula in which the bonds around each carbon atom are not explicitly written?

Skeletal formula

Condensed structural formula

Electron-dot formula

Space-filling model

Answer

Correct Answer: Condensed structural formula

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71. What is a small molecule that is eliminated in a condensation reaction?

Oxygen

Nitrogen

Water

Carbon dioxide

Answer

Correct Answer: Water

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72. What is a condensation polymer?

A polymer formed by linking many molecules together by condensation reactions

A polymer with a high melting point

A polymer that is not soluble in water

A polymer that is difficult to break down

Answer

Correct Answer: A polymer formed by linking many molecules together by condensation reactions

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73. What is the definition of condensation?

The heating of a liquid to produce a gas

The cooling of a gas to produce a liquid

The change of a gas to either the liquid or the solid state.

The emission of water vapor from the surface of the earth

Answer

Correct Answer: The change of a gas to either the liquid or the solid state.

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74. What is Concentration?

The quantity of solute in a standard quantity of solvent or solution

The amount of space between particles in a solid, liquid, or gas

The chemical reaction in which two or more molecules combine to form a larger one

The forces that hold atoms together in a molecule

Answer

Correct Answer: The quantity of solute in a standard quantity of solvent or solution

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75. What is a compound?

A substance that cannot be chemically decomposed

A mixture of two or more substances

A substance composed of two or more elements chemically combined

A substance made up of atoms of only one element

Answer

Correct Answer: A substance composed of two or more elements chemically combined

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76. What is the name given to an ion formed when a metal ion bonds with a Lewis base?

Coordinate covalent bond

Anion

Cation

Complex ion

Answer

Correct Answer: Complex ion

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77. What is a complex ion?

An ion formed from a metal ion with a Lewis base attached to it by a coordinate covalent bond

An electron that is shared between two atoms

Two or more atoms held together by covalent bonds

An atom with more than one stable electron configuration

Answer

Correct Answer: An ion formed from a metal ion with a Lewis base attached to it by a coordinate covalent bond

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78. What is a complex coordination compound?

A compound consisting of complex ions and other ions of opposite charge.

A compound consisting of only complex ions.

A compound consisting only of cations.

A compound consisting of only one type of ion.

Answer

Correct Answer: A compound consisting of complex ions and other ions of opposite charge.

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79. What is a complete ionic equation?

A chemical equation in which weak electrolytes are written as separate ions in the solution.

A chemical equation in which strong electrolytes are not written as separate ions in the solution.

A chemical equation in which strong electrolytes are written as separate ions in the solution.

A chemical equation in which weak electrolytes are not written as separate ions in the solution.

Answer

Correct Answer: A chemical equation in which strong electrolytes are written as separate ions in the solution.

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80. What are complementary bases?

Bases that are not essential to life

Nucleotide bases that form strong hydrogen bonds with one another

Bases that do not form hydrogen bonds

Bases that are not nucleotides

Answer

Correct Answer: Nucleotide bases that form strong hydrogen bonds with one another

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81. What is a combustion reaction?

A reaction of a substance with oxygen, usually with the rapid release of heat to produce a flame.

A reaction of a substance with chlorine, usually with the rapid release of heat to produce a flame.

A reaction of a substance with nitrogen, usually with the rapid release of heat to produce a flame.

A reaction of a substance with carbon dioxide, usually with the rapid release of heat to produce a flame.

Answer

Correct Answer: A reaction of a substance with oxygen, usually with the rapid release of heat to produce a flame.

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82. What is a combination reaction?

A reaction in which two substances cancel each other out to form a third substance

A reaction in which one substance breaks down into two substances

A reaction in which one substance changes into another substance

A reaction in which two substances combine to form a third substance

Answer

Correct Answer: A reaction in which two substances combine to form a third substance

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83. What is a colloid?

A solid in a liquid state

A liquid in a solid state

A dispersion of particles of one substance throughout another substance or solution.

A combination of two gases

Answer

Correct Answer: A dispersion of particles of one substance throughout another substance or solution.

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84. What is the minimum amount of energy required for reaction to occur?

Some minimum value

Less energy

No minimum value

More energy

Answer

Correct Answer: Some minimum value

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85. What does colligative mean?

Depending on the amount of solute in a solution

Depending on the concentration of solute molecules or ions in a solution

Depending on the chemical identity of the solute

Depending on the temperature of the solution

Answer

Correct Answer: Depending on the concentration of solute molecules or ions in a solution

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86. What is a codon?

Molecule composed of nitrogenous bases and ribonucleic acid

Sequence of three bases in a messenger RNA molecule that serves as the code for a particular amino acid

Sequence of three bases in a deoxyribonucleic acid molecule that serves as the code for a particular amino acid

Molecule composed of amino acids and ribonucleic acid

Answer

Correct Answer: Sequence of three bases in a messenger RNA molecule that serves as the code for a particular amino acid

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87. What is Claus process?

A method of obtaining sulfuric acid by the partial burning of hydrogen sulfide

A method of obtaining free sulfur by the partial burning of hydrogen sulfide

A method of obtaining free oxygen by the partial burning of hydrogen sulfide

A method of obtaining free nitrogen by the partial burning of hydrogen sulfide

Answer

Correct Answer: A method of obtaining free sulfur by the partial burning of hydrogen sulfide

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88. What is Chromatography?

A separation technique that depends on how fast a substance moves in a stream of gas or liquid

The study of the structure and behavior of molecules

A compound consisting of Chromium and Oxygen

A process of combining different colors

Answer

Correct Answer: A separation technique that depends on how fast a substance moves in a stream of gas or liquid

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89. Which of the following is NOT a component of a chlor-alkali mercury cell?

Mercury metal

Aqueous sodium chloride

Electrolysis

Cathode

Answer

Correct Answer: Mercury metal

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90. Chlor-alkali mercury cell is used for the electrolysis of ____.

Aqueous sodium chloride

Aqueous potassium chloride

Solid sodium chloride

Aqueous magnesium chloride

Answer

Correct Answer: Aqueous sodium chloride

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91. What does the Chlor?alkali membrane cell do?

The chlor-alkali membrane cell is used for the electrolysis of aqueous sodium iodide.

The chlor-alkali membrane cell is used for the electrolysis of aqueous sodium chloride.

The chlor-alkali membrane cell is used for the electrolysis of aqueous sodium sulfate.

The chlor-alkali membrane cell is used for the electrolysis of aqueous sodium bromide.

Answer

Correct Answer: The chlor-alkali membrane cell is used for the electrolysis of aqueous sodium chloride.

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92. What is the mirror image of a chiral object called?

Right-handed

Identical

Not identical

Left-handed

Answer

Correct Answer: Not identical

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93. What is a chemical property?

The density of a material

A characteristic of a physical change

A characteristic of a material involving its chemical change

The freezing point of a material

Answer

Correct Answer: A characteristic of a material involving its chemical change

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94. What is chemical nomenclature?

The study of the structure and function of biological molecules

The study of chemicals and their reactions

The study of chemical elements and their properties

The systematic naming of chemical compounds

Answer

Correct Answer: The systematic naming of chemical compounds

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95. What does chemical kinetics focus on?

The chemical industry

Reacton rates and molecular events during reactions

Gunpowder

The study of atoms

Answer

Correct Answer: Reacton rates and molecular events during reactions

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96. What does a chemical formula notation do?

Conveys the relative proportions of atoms of the different elements in a substance

List the atomic symbols

Indicate the number of atoms of each element in a molecule of the substance

Show the arrangement of atoms in a molecule of the substance

Answer

Correct Answer: Conveys the relative proportions of atoms of the different elements in a substance

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97. What does chiral mean?

A three-sided object

An object that cannot be superimposed on its mirror image

An object with more than one axis of symmetry

Possessing the quality of handedness

Answer

Correct Answer: Possessing the quality of handedness

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98. Which of the following is an example of a chiral object?

A doorknob

A paperclip

Your right hand

Your left hand

Answer

Correct Answer: Your left hand

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99. What is chemisorption?

The binding of a species to a surface by chemical bonding forces

The process of converting one element into another through chemical means

A type of radiation consisting of high-energy electromagnetic waves

The study of the physical and chemical changes that occur when atoms and molecules interact

Answer

Correct Answer: The binding of a species to a surface by chemical bonding forces

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100. What is a chemical reaction?

A change in which one or more kinds of matter are created

A change in which one or more kinds of matter are moved from one location to another

A change in which one or more kinds of matter are transformed into a new kind of matter

A change in which one or more kinds of matter are destroyed

Answer

Correct Answer: A change in which one or more kinds of matter are transformed into a new kind of matter

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