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Changing substances
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Created by
Puneeth
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Cards (9)
Chemical change
Produces a new substance,
irreversible
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Physical
change
No new substance produced,
reversible
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Physical changes
Melting
Evaporating
Condensing
Freezing
Sublimation
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Physical
changes
only change the
energy
that each particle has (how much it moves) and not its arrangement or
properties
(e.g. its boiling or melting point)
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Chemical
change
Change in
colour
or temperature, or if the reaction produces
light
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In a
chemical change
, a new substance (or
product
) is always
made
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Chemical change
Also called a
chemical reaction
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The number and type of
atoms
do not change in a chemical change and are only
rearranged
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The total overall mass is
conserved
in a chemical change (the mass of the reactant is
equal
to the mass of the products)
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