Ice,water,and steam are three states of matter and not different substances.Justify
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Ice, Water and steam are three states of matter and they are not different in structure because all the three things are of same substance called water. Only difference is in their malecular space. The space between ice are too small and the particles are tightly packed, so it forms as solid substance. Next comes the water, in water the molecules are loosely packed than ice, so it flows as a fluid. In steam all the molecules are very loosely packed. so, it flows in air as a air molecule.
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Freezing of water changes it's state from liquid to solid, i.e, ice. Melting of ice changes it's state of matter from solid to liquid, i.e, water. And when we
boil this water, it's state of matter changes from liquid to gas, i.e, steam. And when we condense this steam, it forms water.
Therefore,we conclude that, ice - water - steam are the three different states of a substance and not different substances.All these change of states are due to different temperatures applied.
ice on heating ---> (melts to) water on further heating ----> (by evaporation) gas
Gas by condensation ---->water on freezing ----> ice.
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