Question

Which of the following is a decomposition reaction?

reactant plus reactant yields product
reaciant minus reactant yields product
reactant yields product plus product reactant yields product times product

Answer 1

Reactant plus reactant yields product.

Explanation:

A decomposition reaction starts from a single substance and produces more than one substance. One substance as a reactant and more than one substance as the products is the key characteristic of a decomposition reaction.

Hope this helps.