Question

4 how does burning food in a calorimeter demonstrate that food contains stored chemical energy?

Explanation:

When food burns in a calorimeter, a chemical reaction occurs. The chemical bonds in the food break, releasing energy in the form of heat. The calorimeter measures this heat energy, showing that food has stored chemical energy which is converted to heat during combustion.

Answer:

When food burns in a calorimeter, chemical bonds break and release heat energy, demonstrating stored chemical energy.