Question

which of the following is not an example of a chemical change?
a piece of paper being torn
a piece of bread being toasted
an egg being cooked

Explanation:

A chemical change results in the formation of new substances. Tearing paper only changes its physical form (size and shape) without creating new substances. Toasting bread and cooking an egg involve chemical reactions that produce new substances (e.g., Maillard reaction products in toasted bread, denatured proteins in cooked egg).

Answer:

a piece of paper being torn