Half Equations
Authored by Lisa Thompson
Science
8th Grade
NGSS covered
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the half equation:
Cu --> Cu2+ + 2e-
Copper undergoes...
Spectatorship
Reduction
Deprotonation
Oxidation
Tags
NGSS.HS-PS1-7
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the half equation: @@ ext{Zn} ightarrow ext{Zn}^{2+} + 2e^-@@, zinc undergoes...
Spectatorship
Reduction
Deprotonation
Oxidation
Tags
NGSS.HS-PS1-2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following is a correct half equation for the reduction of copper ions?
@@ ext{Cu}^{2+} + 2e^- ightarrow ext{Cu}@@
@@ ext{Cu} ightarrow ext{Cu}^{2+} + 2e^-@@
@@ ext{Cu}^{+} + e^- ightarrow ext{Cu}@@
@@ ext{Cu} ightarrow ext{Cu}^{+} + e^-@@
Tags
NGSS.HS-PS1-7
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the half equation: @@ ext{Fe}^{3+} + e^- ightarrow ext{Fe}^{2+}@@, iron is...
Oxidized
Reduced
Neutralized
Hydrated
Tags
NGSS.HS-PS1-2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following represents the oxidation of hydrogen gas?
@@ ext{H}_2 ightarrow 2 ext{H}^+ + 2e^-@@
@@2 ext{H}^+ + 2e^- ightarrow ext{H}_2@@
@@ ext{H}_2 + 2e^- ightarrow 2 ext{H}^-@@
@@ ext{H}_2 ightarrow ext{H}_2^+ + e^-@@
Tags
NGSS.HS-PS1-7
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the half equation: @@ ext{Cl}_2 + 2e^- ightarrow 2 ext{Cl}^-@@, chlorine is...
Oxidized
Reduced
Dissolved
Evaporated
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which half equation correctly represents the reduction of oxygen gas?
@@ ext{O}_2 + 4e^- ightarrow 2 ext{O}^{2-}@@
@@ ext{O}_2 ightarrow ext{O}_2^{2-} + 4e^-@@
@@2 ext{O}^- + 2e^- ightarrow ext{O}_2@@
@@ ext{O}_2 + 2e^- ightarrow ext{O}_2^{2-}@@
Tags
NGSS.HS-PS1-2
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