Question

which clue can be used to identify a chemical reaction as a replacement reaction? the reaction has two reactants with ions that seem to switch places. the reaction has a single reactant that changes into two or more products. the reaction involves oxygen reacting with a hydrocarbon and giving off heat. the reaction involves a single product forming from two or more reactants.

Explanation:

In a replacement reaction, ions switch places. Other options describe combination, combustion, and decomposition reactions.

Answer:

The reaction has two reactants with ions that seem to switch places.