Redox

Redox

10th Grade

19 Qs

quiz-placeholder

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Redox

Redox

Assessment

Quiz

Chemistry

10th Grade

Practice Problem

Hard

NGSS
HS-PS1-2, HS-PS1-1

Standards-aligned

Created by

Charles Martinez

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19 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In the reaction
2Ca(s) + O2(g) --> 2CaO(s), calcium is __________

Reduced
Synthesized
Oxidized
None of the above

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If in a reaction, copper is reduced; its number of electrons has:

Increased
Decreased
Remained Constant
Varies Randomly

Tags

NGSS.HS-PS1-2

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the oxidation number of N in NO2-1?

-3
+4
-2
+3

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is oxidation number of Fe in FeO ?

+2
-2
0
+1

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

If in a reaction, copper is reduced; its number of electrons has:

Increased
Decreased
Remained Constant
Varies Randomly

Tags

NGSS.HS-PS1-2

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

If an atom loses electrons during a chemical reaction, the atom was:

Oxidized
Reduced
Neutralized
Precipitated

Tags

NGSS.HS-PS1-2

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Another name for a "oxidation-reduction" reaction is

chemical reaction
neutralization reaction
redox reaction
nuclear reaction

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