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- 1. Multiple Choice
Which of the following is the definition for molecularity?
Something that blocks the active site.
The ratio of compounds in a reaction.
The number of molecules reacting in a step.
The particles that are too small to settle out by gravity.
- 2. Multiple Choice
Which of the follow defines rate law?
The scattering of light due to colloid particles.
A mathematical expression relating rate to concentrations.
The speed of a reaction.
The substance which undergoes reaction.
- 3. Multiple Choice
Which of the following is the definition for inhibitor?
Something that blocks the active site.
The ratio of compounds in a reaction.
The number of molecules reacting in a step.
The particles that are too small to settle out by gravity.
- 4. Multiple Choice
Which of the follow defines rate?
The scattering of light due to colloid particles.
A mathematical expression relating rate to concentrations.
The speed of a reaction.
The substance which undergoes reaction.
- 5. Multiple Choice
Which of the following is the definition for colloids?
Something that blocks the active site.
The ratio of compounds in a reaction.
The number of molecules reacting in a step.
The particles that are too small to settle out by gravity.
- 6. Multiple Choice
Which of the follow defines substrate?
The scattering of light due to colloid particles.
A mathematical expression relating rate to concentrations.
The speed of a reaction.
The substance which undergoes reaction.
- 7. Multiple Choice
Which of the following is the definition for stoichiometry?
Something that blocks the active site.
The ratio of compounds in a reaction.
The number of molecules reacting in a step.
The particles that are too small to settle out by gravity.
- 8. Multiple Choice
Which of the follow defines the Tyndall effect?
The scattering of light due to colloid particles.
A mathematical expression relating rate to concentrations.
The speed of a reaction.
The substance which undergoes reaction.
- 9. Multiple Choice
Which of the following is the definition of colloidal dispersion?
A species formed and used up; will not appear in rate law.
The minor component (is dissolved).
Small particles suspended in solvent, not true solution.
A solid catalyst in an aqueous reaction.
- 10. Multiple Choice
Which of the following is the definition for a reaction mechanism?
A detailed sequence of reaction steps.
A solution that contains less than the optimal amount of solute.
When all reactants and products are in the same phase.
The major component (retains phase).
- 11. Multiple Choice
Which of the following is the definition of heterogenous catalyst?
A species formed and used up; will not appear in rate law.
The minor component (is dissolved).
Small particles suspended in solvent, not true solution.
A solid catalyst in an aqueous reaction.
- 12. Multiple Choice
Which of the following is the definition for a homogenous equilibria?
A detailed sequence of reaction steps.
A solution that contains less than the optimal amount of solute.
When all reactants and products are in the same phase.
The major component (retains phase).
- 13. Multiple Choice
Which of the following is the definition of solute?
A species formed and used up; will not appear in rate law.
The minor component (is dissolved).
Small particles suspended in solvent, not true solution.
A solid catalyst in an aqueous reaction.
- 14. Multiple Choice
Which of the following is the definition for an unsaturated solution?
A detailed sequence of reaction steps.
A solution that contains less than the optimal amount of solute.
When all reactants and products are in the same phase.
The major component (retains phase).
- 15. Multiple Choice
Which of the following is the definition of intermediate?
A species formed and used up; will not appear in rate law.
The minor component (is dissolved).
Small particles suspended in solvent, not true solution.
A solid catalyst in an aqueous reaction.
- 16. Multiple Choice
Which of the following is the definition for the solvent?
A detailed sequence of reaction steps.
A solution that contains less than the optimal amount of solute.
When all reactants and products are in the same phase.
The major component (retains phase).
- 17. Multiple Choice
Which of the following is the definition for a homogeneous catalyst?
If a system at equilibrium is disturbed, it will react in such a way as to counteract the disturbance and return to equilibrium.
(Activated complex) state corresponding to the highest energy along the reaction coordinate.
A solution that has more solute dissolved that optimal (precipitate forms).
A catalyst in the same phase as the reaction.
- 18. Multiple Choice
Which of the following is the definition for kinetics?
Reactions that can proceed in either direction.
Each single step in a reaction.
The study of reaction rates.
Q
- 19. Multiple Choice
Which of the following is the definition for a Le Chatelier's Principle?
If a system at equilibrium is disturbed, it will react in such a way as to counteract the disturbance and return to equilibrium.
(Activated complex) state corresponding to the highest energy along the reaction coordinate.
A solution that has more solute dissolved that optimal (precipitate forms).
A catalyst in the same phase as the reaction.
- 20. Multiple Choice
Which of the following is the definition for the reaction quotient?
Reactions that can proceed in either direction.
Each single step in a reaction.
The study of reaction rates.
Q
- 21. Multiple Choice
Which of the following is the definition for transition state?
If a system at equilibrium is disturbed, it will react in such a way as to counteract the disturbance and return to equilibrium.
(Activated complex) state corresponding to the highest energy along the reaction coordinate.
A solution that has more solute dissolved that optimal (precipitate forms).
A catalyst in the same phase as the reaction.
- 22. Multiple Choice
Which of the following is the definition for an elementary step?
Reactions that can proceed in either direction.
Each single step in a reaction.
The study of reaction rates.
Q
- 23. Multiple Choice
Which of the following is the definition for a supersaturated solution?
If a system at equilibrium is disturbed, it will react in such a way as to counteract the disturbance and return to equilibrium.
(Activated complex) state corresponding to the highest energy along the reaction coordinate.
A solution that has more solute dissolved that optimal (precipitate forms).
A catalyst in the same phase as the reaction.
- 24. Multiple Choice
Which of the following is the definition for reversible reactions?
Reactions that can proceed in either direction.
Each single step in a reaction.
The study of reaction rates.
Q
- 25. Multiple Choice
Which of the following is the definition for the equilibrium constant?
Solution properties that depend upon only quantity of solute.
K, the value of the reaction quotient at equilibrium.
The place where the substrate or inhibitor binds.
The state when forward and reverse reaction rates become equal.
- 26. Multiple Choice
Which of the following is the definition for an enzyme?
The maximum amount of dissolved solute at a given temperature.
A biological catalyst.
The number of particles (ions) a solute breaks into.
When intermolecular forces between solute and solvent are same as between separated components (no energy change upon solution formation).
- 27. Multiple Choice
Which of the following is the definition for the rate-determining step?
Energy which reacting species must have to form the transition state.
The slowest step in a reaction.
A homogenous mixture.
A substance that speeds up rate without permanent change.
When solids and liquids are not included in the equilibrium constant.
- 28. Multiple Choice
Which of the following is the definition for colligative properties?
Solution properties that depend upon only quantity of solute.
K, the value of the reaction quotient at equilibrium.
The place where the substrate or inhibitor binds.
The state when forward and reverse reaction rates become equal.
- 29. Multiple Choice
Which of the following is the definition for a saturated solution?
The maximum amount of dissolved solute at a given temperature.
A biological catalyst.
The number of particles (ions) a solute breaks into.
When intermolecular forces between solute and solvent are same as between separated components (no energy change upon solution formation).
- 30. Multiple Choice
Which of the following is the definition for activation energy?
Energy which reacting species must have to form the transition state.
The slowest step in a reaction.
A homogenous mixture.
A substance that speeds up rate without permanent change.
When solids and liquids are not included in the equilibrium constant.
- 31. Multiple Choice
Which of the following is the definition for the active site?
Solution properties that depend upon only quantity of solute.
K, the value of the reaction quotient at equilibrium.
The place where the substrate or inhibitor binds.
The state when forward and reverse reaction rates become equal.
- 32. Multiple Choice
Which of the following is the definition for solution?
Energy which reacting species must have to form the transition state.
The slowest step in a reaction.
A homogenous mixture.
A substance that speeds up rate without permanent change.
When solids and liquids are not included in the equilibrium constant.
- 33. Multiple Choice
Which of the following is the definition for the van't hoff factor?
The maximum amount of dissolved solute at a given temperature.
A biological catalyst.
The number of particles (ions) a solute breaks into.
When intermolecular forces between solute and solvent are same as between separated components (no energy change upon solution formation).
- 34. Multiple Choice
Which of the following is the definition for a catalyst?
Energy which reacting species must have to form the transition state.
The slowest step in a reaction.
A homogenous mixture.
A substance that speeds up rate without permanent change.
When solids and liquids are not included in the equilibrium constant.
- 35. Multiple Choice
Which of the following is the definition for the equilibrium?
Solution properties that depend upon only quantity of solute.
K, the value of the reaction quotient at equilibrium.
The place where the substrate or inhibitor binds.
The state when forward and reverse reaction rates become equal.
- 36. Multiple Choice
Which of the following is the definition for an ideal solution?
The maximum amount of dissolved solute at a given temperature.
A biological catalyst.
The number of particles (ions) a solute breaks into.
When intermolecular forces between solute and solvent are same as between separated components (no energy change upon solution formation).
- 37. Multiple Choice
Which of the following is the definition for heterogenous equilibria?
Energy which reacting species must have to form the transition state.
The slowest step in a reaction.
A homogenous mixture.
A substance that speeds up rate without permanent change.
When solids and liquids are not included in the equilibrium constant.
- 38. Multiple Choice
Which of the following is an Arrhenius acid?
H+ donor
OH- donor
Electron pair donor
Electron pair acceptor
- 39. Multiple Choice
Which of the following is a Lewis acid?
H+ acceptor
OH- donor
Electron pair donor
Electron pair acceptor
- 40. Multiple Choice
Which of the following is an Arrhenius base?
H+ donor
OH- donor
Electron pair donor
Electron pair acceptor
- 41. Multiple Choice
Which of the following is a Lewis base?
H+ acceptor
OH- donor
Electron pair donor
Electron pair acceptor
- 42. Multiple Choice
Which of the following is a Bronsted-Lowry acid?
H+ acceptor
H+ donor
Electron pair donor
Electron pair acceptor
- 43. Multiple Choice
Which of the following is a Bronsted-Lowry base?
H+ acceptor
OH- donor
Electron pair donor
Electron pair acceptor
- 44. Multiple Choice
Which of the following are strong acids?
NaOH
HCl
HNO3
H2SO4
HNO2
- 45. Multiple Choice
Which of the following are strong bases?
KOH
HCN
NH3
Ca(OH)2
LiOH
- 46. Multiple Choice
Which of the following definitions is that of a buffer?
A solution (a weak acid or weak base) which resists changes in pH upon the addition of small amounts of strong acid or strong base.
A substance added to a titration to signal (change color) an end point.
Something that decreases the solubility of a solution.
- 47. Multiple Choice
Which of the following definitions is that of an indicator?
A solution (a weak acid or weak base) which resists changes in pH upon the addition of small amounts of strong acid or strong base.
A substance added to a titration to signal (change color) an end point.
Something that decreases the solubility of a solution.
- 48. Multiple Choice
Which law of thermodynamics is this: the entropy of an isolated system (the universe) is always increasing.
1st
2nd
3rd
- 49. Multiple Choice
Which law of thermodynamics is this: the entropy of a pure crystalline substance at absolute zero temperature is zero.
1st
2nd
3rd
- 50. Multiple Choice
Which law of thermodynamics is this: energy cannot be created nor destroyed; it can only be conserved.
1st
2nd
3rd
- 51. Multiple Choice
Which of the following definitions is that of the common ion effect?
A solution (a weak acid or weak base) which resists changes in pH upon the addition of small amounts of strong acid or strong base.
A substance added to a titration to signal (change color) an end point.
Something that decreases the solubility of a solution.
- 52. Multiple Choice
Which value of gibbs free energy (ΔG) represents a spontaneous reaction?
Positive
Negative
- 53. Multiple Choice
Which value of enthalpy (ΔH) represents an endothermic reaction?
Positive
Negative
- 54. Multiple Choice
Which value of entropy (ΔS) represents a favorable reaction?
Positive
Negative
- 55. Multiple Choice
Which value of cell potential (Ecell) represents a spontaneous reaction?
Positive
Negative
- 56. Multiple Choice
Are galvanic cells spontaneous or nonspontaneous?
Spontaneous
Nonspontaneous
- 57. Multiple Choice
Are electrolytic cells spontaneous or nonspontaneous?
Spontaneous
Nonspontaneous
- 58. Multiple Choice
Which of the following definitions is that of radioactivity?
The decay of unstable nuclei by emission of particles or radiation.
The combining of two lighter nuclei to form a heavier nuclei.
The split of a heavier nuclei into two lighter ones.
- 59. Multiple Choice
Which of the following definitions is that of fusion?
The decay of unstable nuclei by emission of particles or radiation.
The combining of two lighter nuclei to form a heavier nuclei.
The split of a heavier nuclei into two lighter ones.
- 60. Multiple Choice
Which of the following definitions is that of fission?
The decay of unstable nuclei by emission of particles or radiation.
The combining of two lighter nuclei to form a heavier nuclei.
The split of a heavier nuclei into two lighter ones.
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