Question

please fast it's urgent




define



physical changes
chemical changes​

Answer 1

Answer:

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:

ɪ ᴡɪʟʟ ʙᴇᴄᴏᴍᴇ ʏᴏᴜʀ ғʀɪᴇɴᴅs