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 Part B. Balance the following redox equations using the half-reaction method: 1. Cr20,2- (ag) + HNO2(aq) → Cr* (ac) + NO3 (ag) (acidic) Cro2- 2. Cr(OH)3 (s) + ClO3" (aq) - + Cl (aq) (basic) (aq)
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 Part B. Balance the following redox equations using the half-reaction method: 1. Cr20,2- (ag) + HNO2(aq) → Cr* (ac) + NO3 (ag) (acidic) Cro2- 2. Cr(OH)3 (s) + ClO3" (aq) - + Cl (aq) (basic) (aq)
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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Science behind corrosion-test
Corrosion is defined as an activity that transforms refined metals into more chemically stable forms such as oxide, hydroxide, carbonate, or sulfide. It refers to the slow decomposition of things (typically metals); thanks to chemical and/or electrochemical reactions with their surroundings. Corrosion engineering is the science of preventing and controlling corrosion.
Corrosion
Corrosion is defined as an activity that transforms refined metals into more chemically stable forms such as oxide, hydroxide, carbonate, or sulfide. It refers to the slow decomposition of things (typically metals); thanks to chemical and/or electrochemical reactions with their surroundings. Corrosion engineering is the science of preventing and controlling corrosion.
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Pasagot po. I would consider this one question po since one activity lang din naman with sub-parts. Sana masagot. Salamat po!
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
che
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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