
Redox Reactions
Authored by Mrs. Sullivan
Science
10th Grade
NGSS covered
Used 84+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Given the equation:
2 Al + 3 Cu2+ → 2 Al3+ + 3 Cu
The reduction half-reaction is
Al → Al3+ + 3e–
Al + 3e– → Al3+
Cu2+ + 2e– → Cu
Cu2+ → Cu + 2e–
Tags
NGSS.HS-PS1-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Given the reaction for the corrosion of aluminum:
4 Al + 3 O2 → 2 Al2O3
Which half-reaction correctly represents the oxidation that occurs?
Al + 3e– → Al3+
Al → Al3+ + 3e–
O2 + 4e– → 2 O2–
O2 → 2 O2– + 4e-
Tags
NGSS.HS-PS1-7
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which half-reaction correctly represents reduction?
Ag → Ag+ + e–
F2 → 2 F– + 2e–
Au3+ + 3e–→ Au
Fe2++ e– → Fe3+
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Half-reactions can be written to represent all
double-replacement reactions
neutralization reactions
fission and fusion reactions
oxidation and reduction reactions
Tags
NGSS.HS-PS1-7
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which half-reaction shows conservation of charge?
Cu + e– → Cu+
Cu+ → Cu + e–
Cu2+ + 2e– → Cu
Cu2+ → Cu + 2e–
Tags
NGSS.HS-PS1-7
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which half-reaction equation represents the reduction of a potassium ion?
K+ + e– → K
K + e– → K+
K+ → K + e–
K → K+ + e–
Tags
NGSS.HS-PS1-7
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which half-reaction correctly represents reduction?
Mn4+ → Mn3+ + e–
Mn4+ → Mn7+ + 3e–
Mn4+ + e– → Mn3+
Mn4+ + 3e– → Mn7+
Tags
NGSS.HS-PS1-7
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