Question

1. which type of reaction is the opposite of a synthesis reaction? a. decomposition b. double displacement c. single displacement d. combustion

Explanation:

In a synthesis reaction, two or more substances combine to form one product. In a decomposition reaction, one substance breaks down into two or more simpler substances. They are opposite processes. Double - displacement, single - displacement, and combustion reactions have different reaction mechanisms and are not opposites of synthesis reactions.

Answer:

A. Decomposition