Which are examples of a chemical change occurring? (Select all that apply.)

Question

toasting bread

cutting butter

melting chocolate

frying an egg

Answer 1

Examples of a chemical change occurring from your list include:

• Toasting bread: This involves the Maillard reaction and caramelization, which changes the chemical composition of the bread.
• Frying an egg: This causes the proteins in the egg to denature and coagulate, resulting in a chemical change.

The other two options, cutting butter and melting chocolate, are physical changes, not chemical changes.