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Topic 9 – Kinetics and Equilibrium
3. Continues
8. Which statement explains why the rate of a chemical reaction is increased when the surface area of
the reactant is increased?
1) This change increases the density of the reacting particle
2) This change increases the concentration of the reactant
3) This change exposes more reactant particles to a possible collision
4) This change alters the reaction mechanism
9. Given the reaction
A + B ------- > C + D
The reaction will occur at the greatest rate if A and B represents
Teacher Preview Copy
Teacher Preview Copy
1) Ionic compounds in the solid phase
2) Nonpolar molecular compounds in the solid phase
3) Solutions of ionic compounds
4) Solutions of nonpolar molecular compounds
o
10. Based on the nature of the reactants in each equation, which reaction at 25 C will occur at the
fastest rate?
1) KI(aq) + AgNO3 (aq) ------- > AgI(s) + KNO3(aq)
2) C(s) + O2(g) ---------- > CO(g)
3) 2SO2(g) + O2(g) ------------------- > 2SO3 (g)
4) NH3(g) + HCl(g) ----------------- > NH4Cl (s)
11. When added to a chemical reaction, a catalyst
1) Lowers the activation energy, and increases reaction rate
2) Lowers the activation energy, and decreases reaction rate
3) Raises the activation energy, and increases reaction rate
4) Raises the activation energy, and decreases reaction rate
12. Which will occur if a catalyst is added to a reaction mixture?
1) The concentration of the reactants will decrease
2) The concentration of t he reactants will increase
3) The activation energy will decrease
4) The activation energy will increase
13. When a catalyst is added to a reaction, the speed of the reaction will increase because the catalyst
provides
1) Alternate higher activation energy pathway for the reaction
2) Alternate lower activation energy pathway for the reaction
3) Alternate higher pressure environment for the reaction to occur
4) Alternate lower pressure environment for the reaction to occur
14. Changes in activation energy during a chemical reaction are represented by a
1) Cooling curve 3) Heating curve
2) Ionization energy diagram 4) Potential energy diagram
268 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com
Topic 9 – Kinetics and Equilibrium
3. Continues
8. Which statement explains why the rate of a chemical reaction is increased when the surface area of
the reactant is increased?
1) This change increases the density of the reacting particle
2) This change increases the concentration of the reactant
3) This change exposes more reactant particles to a possible collision
4) This change alters the reaction mechanism
9. Given the reaction
A + B ------- > C + D
The reaction will occur at the greatest rate if A and B represents
Teacher Preview Copy
Teacher Preview Copy
1) Ionic compounds in the solid phase
2) Nonpolar molecular compounds in the solid phase
3) Solutions of ionic compounds
4) Solutions of nonpolar molecular compounds
o
10. Based on the nature of the reactants in each equation, which reaction at 25 C will occur at the
fastest rate?
1) KI(aq) + AgNO3 (aq) ------- > AgI(s) + KNO3(aq)
2) C(s) + O2(g) ---------- > CO(g)
3) 2SO2(g) + O2(g) ------------------- > 2SO3 (g)
4) NH3(g) + HCl(g) ----------------- > NH4Cl (s)
11. When added to a chemical reaction, a catalyst
1) Lowers the activation energy, and increases reaction rate
2) Lowers the activation energy, and decreases reaction rate
3) Raises the activation energy, and increases reaction rate
4) Raises the activation energy, and decreases reaction rate
12. Which will occur if a catalyst is added to a reaction mixture?
1) The concentration of the reactants will decrease
2) The concentration of t he reactants will increase
3) The activation energy will decrease
4) The activation energy will increase
13. When a catalyst is added to a reaction, the speed of the reaction will increase because the catalyst
provides
1) Alternate higher activation energy pathway for the reaction
2) Alternate lower activation energy pathway for the reaction
3) Alternate higher pressure environment for the reaction to occur
4) Alternate lower pressure environment for the reaction to occur
14. Changes in activation energy during a chemical reaction are represented by a
1) Cooling curve 3) Heating curve
2) Ionization energy diagram 4) Potential energy diagram
268 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com
