
Half Equations
Authored by Charles Martinez
Chemistry
10th - 12th Grade
NGSS covered
Used 2+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which statement is true:
Mg → Mg2+ + 2e–
Tags
NGSS.HS-PS1-2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What substance is oxidized in the following reaction?
4Fe + 3O2 --> 2Fe2O3
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Is calcium oxidized or reduced in the following reaction?
2CaO--> 2Ca + O2
Tags
NGSS.HS-PS1-2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following half reactions correctly represents a reduction half reaction?
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following is the balanced half -reaction for the oxidation of Cu to Cu+2?
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is a half-reaction of this equation, Na + Cl --> NaCl ?
Cl + e- --> Cl-
Cl - e- --> Cl-
Na --> Na + e-
Na° + Cl°--> Na+1Cl-1
Tags
NGSS.HS-PS1-2
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