Week 7: Balancing REDOX reactions
10th - 12th Grade
•14 Qs
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Week 7: Balancing REDOX reactions
Quiz
•
Science
•
10th - 12th Grade
•
Practice Problem
•
Medium
Standards-aligned
Kathryn McBroom
Used 236+ times
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14 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the oxidation number of oxygen in water?
-1
-2
0
+1
+2
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Is calcium oxidized or reduced in the following reaction?
2CaO--> 2Ca + O2
Tags
NGSS.HS-PS1-2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the reaction
2Ca(s) + O2(g) --> 2CaO(s), calcium is __________
Tags
NGSS.HS-PS1-2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the reaction Zn + H2O --> ZnO2 + H2
which element, if any, is oxidized?
Tags
NGSS.HS-PS1-2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What substance is oxidized in the following reaction?
4Fe + 3O2 --> 2Fe2O3
Tags
NGSS.HS-PS1-2
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
If in a reaction, copper is reduced; its number of electrons has:
Tags
NGSS.HS-PS1-2
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
If an atom loses electrons during a chemical reaction, the atom was:
Tags
NGSS.HS-PS1-2
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