21. Identify the changes in the state of melting of ice?
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Answer. Melting of ice is a physical change because it involves change only in the physical state of water, from ice in the solid state to water in the liquid state. Moreover, no new chemical substance is formed in the process and this change is reversible. Water can be converted back into ice simply by freezing.
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it is physical chage bcoz no new substance is formed when you melt ice!
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