Question

Which best describes why a physical change differs from a chemical change?

A.
A physical change predicts the behavior of a substance when in a reaction, whereas a chemical change is used to identify characteristics of a substance.

B.
A physical change results in a new substance being formed, and a chemical change results in a different state of matter.

C.
A physical change happens spontaneously, and a chemical change is used by scientists to create new substances.

Answer 1

One sec

Answer 2

D.
A physical change will result in a different state of matter, whereas a chemical change results in a new substance being formed.

Answer 3

A.
A physical change predicts the behavior of a substance when in a reaction, whereas a chemical change is used to identify characteristics of a substance.

Answer 4

Ty

Answer 5

Medal for you :D

Answer 6

Can you answer one more?

Answer 7

let's see

Answer 8

Which physical properties can be used to identify an unknown material?

Choose all answers that are correct.

A.
melting point

B.
mass

C.
solubility

D.
temperature

Answer 9

I suck at this stuff.

Answer 10

a,c,d

Answer 11

Thanks, Ill fan

Answer 12

mass can be the same for o lott of objects

Answer 13

There we go, Faned