Question

replacement involves one element replacing another element in a compound.
a single
b double
involves a fuel reacting with oxygen gas to form carbon dioxide and water.
a oxidation
b combustion
which types of chemical reactions are considered opposites of one another?
a oxidation and combustion
b synthesis and decomposition

Explanation:

1. In a single - replacement reaction, one element replaces another in a compound.
2. A combustion reaction involves a fuel reacting with oxygen to form carbon dioxide and water.
3. Synthesis reactions combine substances to form a single product, while decomposition reactions break a single compound into multiple substances, making them opposites.

Answer:

1. A. single
2. B. combustion
3. B. synthesis and decomposition