Physics

Question

Q1. What kind of change (physical or chemical) occurred when the match

stick burned?

Q2. What energy was given-off by the burning match stick?

Answer

A1. Chemical change occurred when the match stick burned. A2. Thermal energy was given-off by the burning match stick.

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When the match stick burns, a chemical reaction takes place between the oxygen in the air and the chemicals in the match head. This chemical reaction produces...