Phys/chem Changes

Question 1

Chemical change

Answer 1

Results in the formation of a new substance or substances.

e.g: when calcium reacts with water the new substances produced are calcium hydroxide (CaOH)2 and hydrogen gas (H2)

Question 2

Physical Change

Answer 2

A change in state, shape, and form. No new substances are produced.

e.g: ice melting