Question

Which describes how chemical changes are different from physical changes?

Chemical changes can be measured, but physical changes cannot.

Chemical changes involve the formation of a new substance.

Chemical changes release energy, but physical changes absorb energy.

Chemical changes cannot be caused by oxygen.

Answer 1

@SkyVoltage43 @JustSaiyan

Answer 2

Chemical changes involve the formation of a new substance.

Answer 3

Chemical changes involve the formation of a new substance.

Answer 4

THE LAG

Answer 5

I pushed my post button 5 times

Answer 6

sucks huh

Answer 7

Yeah.