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Iron
it burns and turns into nothing
Barium Chloride becomes a yellow/green when heated
The intermolecular forces of attraction in the solid decreases as it is heated and the solid melts (solid converts to liquid) at its melting point.
on heating copper carbonate decomposes to cupric oxide which is black in colour.
It doesn't, water turns into steam, or a gas when heated. Water turns into a solid when cooled
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.... it melts.
.... it melts.
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It contracts.
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Iron
It is called melting.
It is called melting.
it burns and turns into nothing
Barium Chloride becomes a yellow/green when heated