Question

What is a change ? Explain any two changes

Answer 1

Answer:

Key Points. Physical changes only change the appearance of a substance, not its chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions.

Answer 2

Answer:

hey bro

Explanation:

There are two types of change in matter: physical change and chemical change. As the names suggest,

a physical change affects a substance's physical properties

a chemical change affects its chemical properties.

hope it help u