When ice melts, it is a
Ice and water are merely different states
If during reaction, chemical bonds of a substance break, its properties change are
Matter exists in different states
If a property of a substance indicates its ability to react, it is
Melting point of a substance is a
Burning is a process
If a substance undergoes a chemical reaction, its properties change are
When breaking of chemical bonds occur in a reaction, new substances
Ice and water are forms of matter
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