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When a catalyst is added to a reaction, the reaction rate is increased because the catalyst 1) increases activation energy 2) decreases activation energy 3) increases potential energy of the reactants 4) decreases potential energy of the reactants

When a catalyst is added to a reaction, the reaction rate is increased because the catalyst 1) increases activation energy 2) decreases activation energy 3) increases potential energy of the reactants 4) decreases potential energy of the reactants

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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FYI: #5-8 is like a),b),c) and d)

Thank you. 

Practice 5 When a catalyst is added to a reaction, the reaction rate is increased because the catalyst 1) increases activation energy 2) decreases activation energy 3) increases potential energy of the reactants 4) decreases potential energy of the reactants Practice 6 Given the reaction: Mg(s) + 2HNO3(aq) Mg(NO3)2(aq) + H2(g) At which temperature will the reaction occur at the greatest rate? 2) 50°C 1) 10°C 3) 30°C 4) 70°C Practice 7 Given the reaction CuSO4(s) → Cu²*(aq) + SO, (aq) The CuSO4(s) dissolves more rapidly when it is powdered because the increase in the surface area allows for 1) increased exposure of solute to solvent 2) decreased exposure of solute to solvent 3) increased solute solubility 4) decreased solute solubility Practice 8 Based on the nature of the reactants in each equation, which reaction at 25°C will occur at the fastest rate? 1) KI(aq) 2) C(s) 3) 2SO2(g) + O2(g) 4) NH3(g) + HCI(g) → NH4CI(s) + A£NO3(aq) → Agl(s) + KNO3(aq) → CO(g) → 2SO3(g) + 02(g)
Transcribed Image Text:Practice 5 When a catalyst is added to a reaction, the reaction rate is increased because the catalyst 1) increases activation energy 2) decreases activation energy 3) increases potential energy of the reactants 4) decreases potential energy of the reactants Practice 6 Given the reaction: Mg(s) + 2HNO3(aq) Mg(NO3)2(aq) + H2(g) At which temperature will the reaction occur at the greatest rate? 2) 50°C 1) 10°C 3) 30°C 4) 70°C Practice 7 Given the reaction CuSO4(s) → Cu²*(aq) + SO, (aq) The CuSO4(s) dissolves more rapidly when it is powdered because the increase in the surface area allows for 1) increased exposure of solute to solvent 2) decreased exposure of solute to solvent 3) increased solute solubility 4) decreased solute solubility Practice 8 Based on the nature of the reactants in each equation, which reaction at 25°C will occur at the fastest rate? 1) KI(aq) 2) C(s) 3) 2SO2(g) + O2(g) 4) NH3(g) + HCI(g) → NH4CI(s) + A£NO3(aq) → Agl(s) + KNO3(aq) → CO(g) → 2SO3(g) + 02(g)
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