Question

Joe watches a candle burn. What chemical change does he observe?

Answer 1

[AI-generated answer — Bot GPT 3.5]

The chemical change that Joe observes while watching the candle burn is the combustion of the wax in the candle, which produces carbon dioxide, water vapor, and heat as byproducts. This chemical reaction is a combustion reaction, where the wax reacts with oxygen in the air to produce energy in the form of heat and light.