Question

which event is endothermic? the burning of a match the change of water vapor to a liquid the combustion of propane gas the melting of ice

Explanation:

Endothermic processes absorb heat. Burning a match and propane combustion release heat (exothermic). Water - vapor to liquid is condensation, which releases heat. Melting ice requires heat absorption, making it endothermic.

Answer:

the melting of ice