Which describes how chemical changes are different from physical changes?
A Chemical changes can be measured, but physical changes cannot.

B Chemical changes involve the formation of a new substance.

C Chemical changes release energy, but physical changes absorb energy.

D Chemical changes cannot be caused by oxygen.

Question

Which describes how chemical changes are different from physical changes?
A Chemical changes can be measured, but physical changes cannot. 

B  Chemical changes involve the formation of a new substance. 

C Chemical changes release energy, but physical changes absorb energy.

D Chemical changes cannot be caused by oxygen.

nechirwan · Answer

B  Chemical changes involve the formation of a new substance.

anonymous · Answer

B is the correct answer