The Nature Of Science And Engineering, Physical Science Worksheet With Answers - Minnesota K-12 Page 9
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1229. Generally speaking, what happens to these species in these reactions?
They are gaining electrons from the metals.
30. When looking at electrons, what can be said about the term, reduction?
Reduction means the gain of electrons.
31. In these reactions what species is causing reduction? What species cause
oxidation?
The species can be called the reducing agent – reduces the other species
The species can be called the oxidizing agent – oxidizes the other species
32. For the future, we will call the species that causes reduction, the reducing
agent and the species that causes oxidation, the oxidizing agent.
33. Consider the following reactions:
a. S + O
→ SO
2
2
-
-
b. Cl
+ I
→ I
+ Cl
2
2
c. AgNO
+ Cu → Ag + CuNO
3
3
d. NaOH + HCl → NaCl + H
OFe(NO
)
+ NaOH → Fe(OH)
+ NaNO3
2
3
3
3
e. WO
+ H
→ W + H
O
2
2
2
f.
3 ZnS + 8 HNO
→ 3 ZnSO
+ 8 NO + 4 H
O
3
4
2
Are all of these oxidation-reduction (redox) reactions?
No.
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