Question

Which of these changes is an example of a physical change?

A. electrolysis of water forming hydrogen and oxygen

B. cooking an egg

C. melting ice

D. iron combining with oxygen to form rust​

Answer 1

I think it might be a

Answer 2

Answer: C. Melting Ice

Explanation: The rest are chemical changes, the ice is the same substance (water), just changing physical forms, solid --> liquid