Question

Which type of change does the statement describe?
A. particals rearrange into new combinations, forming new substances.
B. their is no new change in the chemical properties of the substance.
C. particals retain their composition and identity.
D. the chemical properties of the substance change.
which ones are chemical change and which ones are physical change?

Answer 1

Hi.
Chemical Change: A and D
Physical Change: B and C

Answer 2

Chemical Change: A and D

Physical Change: B and C

What is a chemical change?

In a chemical change, the molecular structure of a substance changes.

A chemical change is a change in which the chemical composition of the substance changes by the rearrangement of atoms. The molecular structure changes due to changes in atoms.

Example, $H_2 +O_2$ → $2H_2O$

Physical change is a change in which only the physical properties such as size, shape etc change and there is no rearrangement of atoms.

Example,  $H_2O (S)$→ $H_2O (l)$

Learn more about chemical change here:

https://brainly.com/question/8159283

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