sublimation of any substance is a.) chemical change. b.) physical change. c.) both a.) and b.) d.) all of these
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Physical Change
sublimation of any substance is a Physical Change
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Sublimation is regarded as a chemical change but the slaking lime is considered a physical change. sublimation is a physical change because it is just the change of a solid substance to it's vapour state,no new substance is formed and it can be again converted to solid this means it is a reversible change whereas in case of slaking of lime CaO reacts with H
2
O to form Ca(OH)
2
and energy,a new substance Ca(OH)
2
is formed and it can't be reversed by physical means so,it's a chemical change.
Explanation:
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