Question

summary
in this section, we summarize the five reaction types.

1. summarize the types of reactions by selecting a description of each reaction to match the reaction type.

combination
decomposition
single replacement
double replacement
combustion
a: the two cations in two ionic compounds trade places.
a single element replaces a similar element in a compound.
a substance reacts with oxygen.
a single compound reacts to form two or more simpler substances.
two simple substances, often elements, react to form a single compound.

Explanation:

Combination reaction is when two simple substances (often elements) combine to form a single compound. Decomposition is a single compound breaking into two or more simpler substances. Single - replacement is a single element replacing a similar element in a compound. Double - replacement is the two cations in two ionic compounds trading places. Combustion is a substance reacting with oxygen.

Answer:

Combination: Two simple substances, often elements, react to form a single compound.
Decomposition: A single compound reacts to form two or more simpler substances.
Single Replacement: A single element replaces a similar element in a compound.
Double Replacement: The two cations in two ionic compounds trade places.
Combustion: A substance reacts with oxygen.