Question

Which of the following is a chemical reaction?

Answer 1

a chemical reaction happens when two chemicals mix , causing something to happen

example: hydrogen and oxygen combining to make H2O

not an example: ice melting to make water

Answer 2

Answer:

Digestion of food

Explanation:

Chemical digestion is considered a chemical change because enzymes in the stomach and intestines break down large macromolecules into simpler molecules so that the body can more easily absorb the food.