HELP PLEASE What is chemical equation
A.substance present after a reaction
B.reaction in which substances combine to form a more complex compoud
C.principle that states that matter if not created of destroyed during a chemical rection
D. reaction in which one element replaces another in a compoud
E.substance present before a reaction
F.number telling how many molecules of a substance are involved in a chemical reaction
G.reaction in which compounds are broken down into simpler substances
H.uses symbols and formulas to show chemical reactions.