CHEM 123 Unit 4 Test Blueprint Key

When the following redox equation is balanced with

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36) When the following redox equation is balanced with smallest whole number coefficients, the coefficient for zinc will be _____. Zn( s ) + ReO 4 - ( aq ) Re( s ) + Zn 2+ ( aq ) (acidic solution) 37) Given the following unbalanced redox equation. Write the balanced equations for the oxidation, reduction, and overall cell reaction (be sure to include phases!) in ACIDIC media. V 3+ (aq) + NO 3 - (aq) → VO 2+ (aq) + NO(g) a) Oxidation (3 points) H 2 O(l) + V 3+ (aq) → VO 2+ (aq) + 2H + (aq) + e - b) Reduction (3 points) 3e - + 4H + (aq) + NO 3 - (aq) NO(g) + 2H 2 O(l) c) Overall Cell reaction. (3 points) H 2 O(l) + 3V 3+ (aq) + NO 3 - (aq) 3VO 2+ (aq) + 2H + (aq) + NO(g) Understand a galvanic cell. Identify the cathode, anode, oxidizing agent, reducing agent, direction of electron flow, direction of ion flow, + electrode and electrode.
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