Question

Chemical changes make new materials and tend not to be readily reserved. Physical changes do not make new materials and tend to be readily reserved. Which of the following is a chemical change?

A. the evaporation of a rain puddle

B. frying an egg

C. ice cracking a milk bottle

D. melting butter

Answer 1

Chemical changes result in the formation of new substances, and the changes that occur cannot be reversed (at least without other chemical changes). The heat from frying an egg causes the egg's protein to change permanently in texture and in appearance through a process called denaturing.

The answer is B. Frying an egg.