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.

I believe the correct answer is the first option. A reaction with two reactants that is held by ionic bonding would most likely switch places and this is called a replacement reaction. The products would be new substances with new set of properties.

Explanation:

Yes, the answer is in fact A. I have just taken the test and got it correct.

This is a late answer but I hope it helps, luvs

v=ir = 3x15 =45 v