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Activity 2. Balancing Redox Reactions Learning Objectives: 1. Balance redox equations using change in oxidation number method. 2. Write the oxidation and reduction half reactions for a given redox reaction. 3. Balance a redox reaction using the half-reaction method. What you need: pen and paper What to do: Part A. Identify if the following equations are balanced. If not, balance them using the change in oxidation number method. Write your answer in a separate sheet of paper. 1. 2Naa) + Cl20 -> 2NaCl) 2. Al + Cu2 aq)- 3. Zna) + 2HNO30) 4.SiO2() + C(u) Al3 (aq) + Cua) -> Zn(NO3)2(a) + NO2 + H2Ou) -> Sia) + COjg)

Activity 2. Balancing Redox Reactions Learning Objectives: 1. Balance redox equations using change in oxidation number method. 2. Write the oxidation and reduction half reactions for a given redox reaction. 3. Balance a redox reaction using the half-reaction method. What you need: pen and paper What to do: Part A. Identify if the following equations are balanced. If not, balance them using the change in oxidation number method. Write your answer in a separate sheet of paper. 1. 2Naa) + Cl20 -> 2NaCl) 2. Al + Cu2 aq)- 3. Zna) + 2HNO30) 4.SiO2() + C(u) Al3 (aq) + Cua) -> Zn(NO3)2(a) + NO2 + H2Ou) -> Sia) + COjg)

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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One activity lang po to kaya I would consider this one question with sub-parts. Sana po masagot. Maraming salamat!
Activity 2. Balancing Redox Reactions Learning Objectives: 1. Balance redox equations using change in oxidation number method. 2. Write the oxidation and reduction half reactions for a given redox reaction. 3. Balance a redox reaction using the half-reaction method. What you need: pen and paper What to do: Part A. Identify if the following equations are balanced. If not, balance them using the change in oxidation number method. Write your answer in a separate sheet of paper. 1. 2Na(a) + Cl210 2. Al() + Cu2*(aq) 2 3. Zn(a) + 2HNO3) –> Zn(NO3)21«) + NO2 + H2O) 4.SiO2() + C( -> Si) + CO) 2NaCl() Al3* (aq) + Cua) Part B. Balance the following redox equations using the half-reaction method: 1. Cr2072- (aq) + HNO2(aq) → Cr³* (aq) + NO3" (ag) (acidic) 2. Cr(OH)3 (4) + clo3 (ac) → CrOq2- (aq) + Cl (ag) (basic) Guide Questions: 1. When balancing redox reaction in a basic solution, how many OH- should be added to each side? 2. When does the oxidation-number approach and the half-reaction method work best?
Transcribed Image Text:Activity 2. Balancing Redox Reactions Learning Objectives: 1. Balance redox equations using change in oxidation number method. 2. Write the oxidation and reduction half reactions for a given redox reaction. 3. Balance a redox reaction using the half-reaction method. What you need: pen and paper What to do: Part A. Identify if the following equations are balanced. If not, balance them using the change in oxidation number method. Write your answer in a separate sheet of paper. 1. 2Na(a) + Cl210 2. Al() + Cu2*(aq) 2 3. Zn(a) + 2HNO3) –> Zn(NO3)21«) + NO2 + H2O) 4.SiO2() + C( -> Si) + CO) 2NaCl() Al3* (aq) + Cua) Part B. Balance the following redox equations using the half-reaction method: 1. Cr2072- (aq) + HNO2(aq) → Cr³* (aq) + NO3" (ag) (acidic) 2. Cr(OH)3 (4) + clo3 (ac) → CrOq2- (aq) + Cl (ag) (basic) Guide Questions: 1. When balancing redox reaction in a basic solution, how many OH- should be added to each side? 2. When does the oxidation-number approach and the half-reaction method work best?
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