1. If a 2.5 A current is run through a circuit for 35 minutes, how many coulombs of charge moved through the circuit? 2. For the sconario in the provious question, how many olectrons moved through the circuit?

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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1. If a 2.5 A current is run through a circuit for 35 minutes, how many coulombs of charge moved through the circuit?
2. For the scenario in the previous question, how many electrons moved through the circuit?
3. For each of the following balanced half-reactions, determine whether an oxidation or reduction is occurring.
a. Fe + 3e
+ Fe
b. Cr
» Cr+ + 3e
с. MnO,2
→ MnO4 + e
d. Li' + e
- Li
4. For each of the following unbalanced half-reactions, determine whether an oxidation or reduction is occurring.
a. Cl → Cl2
b. Mn²+
→ MnO,
с. На — н
d. NO, → NO
5. Given the following pairs of balanced half-reactions, determine the balanced reaction for each pair of half-reactions
acidic solution.
a. Ca → Ca²+ + 2e¯, F2 + 2e¯ -→ 2F
b. Li
→ Lit + e¯, Cl2 + 2e
- 2C1
c. Fe
+ Fe + 3e , Br2 + 2e → 2Br
d. Ag -
Ag' +e , Mn0, + 4H' + 3e'
→ MnO2 + 2H20
>
Transcribed Image Text:1. If a 2.5 A current is run through a circuit for 35 minutes, how many coulombs of charge moved through the circuit? 2. For the scenario in the previous question, how many electrons moved through the circuit? 3. For each of the following balanced half-reactions, determine whether an oxidation or reduction is occurring. a. Fe + 3e + Fe b. Cr » Cr+ + 3e с. MnO,2 → MnO4 + e d. Li' + e - Li 4. For each of the following unbalanced half-reactions, determine whether an oxidation or reduction is occurring. a. Cl → Cl2 b. Mn²+ → MnO, с. На — н d. NO, → NO 5. Given the following pairs of balanced half-reactions, determine the balanced reaction for each pair of half-reactions acidic solution. a. Ca → Ca²+ + 2e¯, F2 + 2e¯ -→ 2F b. Li → Lit + e¯, Cl2 + 2e - 2C1 c. Fe + Fe + 3e , Br2 + 2e → 2Br d. Ag - Ag' +e , Mn0, + 4H' + 3e' → MnO2 + 2H20 >
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