In your lab, heat was created by adding the vinegar to the steel wool. Where did this energy come from? Where was it before the reaction took place?

energy is in everything. think of a piece of wood when burnt.how does it stay burning? it just needs something to release the energy as in heat (like vinegar and steel wool)

Explanation:

i wouldnt take my word for it for a test answer but if it's a general question then this is how it's explained

substitution is the answer in this case

c.           is the correct answer