When a chemical reaction occurs, _____.
a phase change takes place
the physical and chemical properties of the products are different from the reactants
the physical and chemical properties of the reactants are the same as the properties of the products
the compounds can be separated by physical means

Respuesta :

Answer: When a chemical reaction occurs, _____.

a phase change takes place

the physical and chemical properties of the products are different from the reactants

Explanation:

A chemical change is like dynamite exploding or iron rusting. It's an actual change in the chemical makeup resulting in a new product