
Redox Reactions
Authored by Kallie Yeager
Chemistry
9th - 12th Grade
NGSS covered
Used 5+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
If in a reaction, copper is reduced; its number of electrons has:
Tags
NGSS.HS-PS1-2
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
If an atom loses electrons during a chemical reaction, the atom was:
Tags
NGSS.HS-PS1-2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the reaction 2Ca + O2 --> 2CaO, calcium is __________
Reduced
Synthesized
Oxidized
None of the above
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the reaction Zn + H2O --> ZnO2 + H2 which element, if any, is oxidized?
Zinc
Hydrogen
Oxygen
None
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cl2 + 2e- --> 2Cl - is an example of:
a chemical reaction
redox
oxidation
reduction
Tags
NGSS.HS-PS1-2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An increase in oxidation number is considered
more acidic
reduction
less basic
oxidation
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A decrease in oxidation number is considered
more concentrated
reduction
oxidation
more dilute
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