Question

Which is a chemical change?

A. Splitting water into hydrogen and oxygen.

B. Breaking a block of solid ice into smaller pieces.

C. Freezing liquid water.

D. Boiling Water​

Answer 1

Splitting water into hydrogen and oxygen.

Answer 2

A. Splitting water into hydrogen and oxygen.

Step-by-step explanation:

A chemical change produces a new substance. ... A physical change does not produce a new substance. Changes in state or phase (melting, freezing, vaporization, condensation, sublimation) are physical changes.