Question

If thwre is a change in composition of a substance we call it

Answer 1

Answer:

Physical changes only change the appearance of a substance, not its chemical composition. ... Chemical changes are also known as chemical reactions. The “ingredients” of a reaction are called reactants, and the end results are called products.

Answer 2

Answer:

Physical change

Explanation:

Physical changes only change the appearance of a substance, not its chemical composition.