Have an account?
Skip to Content
Build your own quiz
Suggestions for you
15 questions
Show Answers
See Preview
- 1. Multiple ChoiceIf in a reaction, copper is reduced; its number of electrons has:IncreasedDecreasedRemained ConstantVaries Randomly
- 2. Multiple ChoiceIs calcium oxidized or reduced in the following reaction?
2CaO--> 2Ca + O2OxidizedReduced - 3. Multiple Choice
What element is being Oxidized?
N+5
H+1
O-2
S-2
- 4. Multiple Choice
What element is being Reduced?
N+5
H+1
O-2
S-2
- 5. Multiple Choice
What element is being Oxidized?
I0
H+1
S+4
O-2
- 6. Multiple Choice
What element is being reduced?
I0
H+1
S+4
O-2
- 7. Multiple ChoiceIf an atom loses electrons during a chemical reaction, the atom was:OxidizedReducedNeutralizedPrecipitated
- 8. Multiple Choice
In the reaction Zn + H2O --> ZnO2 + H2
which element, if any, is oxidized?
Zn0
Zn+2
O-2
H20
None
- 9. Multiple ChoiceWhat substance is oxidized in the following reaction?
4Fe + 3O2 --> 2Fe2O3IronFluorineOxygen - 10. Multiple Choice
Cl2 + 2e- --> 2Cl - is an example of:
a chemical reaction
redox
oxidation
reduction
- 11. Multiple Choice
An increase in oxidation number.
more acidic
reduction
less basic
oxidation
- 12. Multiple Choice
A decrease in oxidation number.
redox
reduction
oxidation
dilute
- 13. Multiple Choice
Oxidation-reduction reactions occur because of the competition between particles for...
protons
neutrons
electrons
positrons
- 14. Multiple Choice
Mg + PbCl2 --> MgCl2 + Pb. Which statement correctly describes the oxidation and reduction that occur?
Mg is oxidized and Cl- is reduced
Mg is oxidized and Pb+2 is reduced
Mg is reduced and Cl- is oxidized
Mg is reduced and Pb+2 is oxidized
- 15. Multiple Choice
As an element is oxidized, its oxidation number...
increases as electrons are gained
decreases as electrons are gained
decreases as electrons are lost
increases as electrons are lost
- Answer choicesTagsAnswer choicesTags