Respuesta :

halieG
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
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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.