Answer:
1.A process in which one or more substances, the reactants, are converted to one or more different substances, the products.
2.Combination, decomposition, single-replacement, double-replacement, and combustion.
3.Because of chemical reactions that human beings (and all other animals) reproduce, digest, grow, heal, and think.
4.They are equations that make use of chemical formulae and symbols to represent chemical reactions. The left-hand side of a chemical equation represents the reactants and the right-hand side represents the products. These entities are separated by a symbol that describes the direction of the reaction. Each reacting entity is also assigned its corresponding stoichiometric coefficient.
5.Balancing chemical equations is important because a chemical equation that isn't balanced doesn't describe the chemical reaction properly.
Explanation:
Correct me if I'm wrong hope it helps
