Which of the following is not true about chemical changes? a. They form a new substance. b. They can be reversed by physical changes. c. They can be detected by changes such as color. d. They have different properties from their starting materials.

Question

ipwnbunnies · Answer

Chemical changes definitely form new substances, a change in color denotes a chemical reaction, and substances do have different properties from their starting materials. Chemical changes ARE NOT reversible.

anonymous · Answer

So would it be A, B, C or D?

ipwnbunnies · Answer

.-.  The question asks for which of the choices is not true. I told you which one is not true.

anonymous · Answer

Oh i'm sorry, my mistake I read it wrong. Thank you though! ^...^

anonymous · Answer

so what is the answer