oxidation and reduction
Authored by aliaa ali
Science
9th Grade
NGSS covered
Used 16+ times
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15 questions
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1.
FILL IN THE BLANKS QUESTION
2 mins • 1 pt
(a) is the gain of oxygen atoms.
Tags
NGSS.HS-PS1-2
2.
FILL IN THE BLANKS QUESTION
2 mins • 1 pt
(a) is the loss of oxygen atoms.
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Is this an oxidation or reduction reaction?
water → hydrogen + oxygen
Oxidation
Reduction
Tags
NGSS.HS-PS1-2
NGSS.HS-PS1-1
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which element has been reduced?
iron oxide + lithium → iron + lithium oxide
iron
lithium
oxide
iron oxide
Tags
NGSS.HS-PS1-2
NGSS.HS-PS1-1
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which statement is true:
Mg → Mg2+ + 2e–
Tags
NGSS.HS-PS1-2
NGSS.HS-PS1-1
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
In a reaction, copper is reduced; its number of electrons has:
Increased
Decreased
Remained Constant
Varies Randomly
Tags
NGSS.HS-PS1-2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What substance is oxidized in the following reaction?
4Fe + 3O2 --> 2Fe2O3
Tags
NGSS.HS-PS1-2
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