Question

Give one example of change in state....

Answer 1

2H2(g) + O2(g) ------> 2H2O(l)
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Answer 2

Phase changes include vaporization, condensation, melting, freezing, sublimation, and deposition. Evaporation, a type of vaporization, occurs when particles of a liquid reach a high enough energy to leave the surface of the liquid and change into the gas state. An example of evaporation is a puddle of water drying out.

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