How do the substances change after a chemical reaction?

Answer 1

During a chemical reaction, bonds are broken between the atoms of the reactants and new bonds form to make the products. Essentially, the atoms of the reactants are rearranged to form the products.

Answer 2

When molecules bump and move each other, a chemical reaction occurs. The moving and combining of molecules forms the new substances.

Answer 3

Substances that react during a chemical reaction are called reactants.

Answer 4

Old bonds between atoms in molecules are broken, and new bonds are formed forming new molecules.