| The
reaction of a metal and nonmetal to form an ionic compound is an example
of a(n) __________________ reaction.
2. Metals are often __________________ by nonmetals.
3. __________________ ions have oxidation numbers
equal to their ionic charge.
4. __________________ is a process that involves
the gain of electrons.
5. __________________ is a term used to describe
oxidation–reduction reactions.
6. An element whose oxidation
number has changed from +4 to +2 is said to have been __________________.
7.
The reaction of a metal with a metal ion solution is an example of a
__________________ reaction.
8. The __________________ is useful to predict
whether a metal will react with a metal ion solution.
9. __________________
reactions involve the gain and loss of electrons.
10. The atoms of a(n) __________________ have an
oxidation number of zero.
11. __________________ are useful to track the
loss and gain of electrons in redox reactions.
12. The change of Fe
to Fe2+ is an example of __________________.
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