In a physical change the form changes or the state of the matter. For instance water can freeze and water can melt, but it is still water.
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Water can change it's STATE but it will not change it's COMPOUND.
An an increase in
temperature lead to more effective collisions between reactant particles and an
increase in the rate of a chemical reaction because the number of
molecules with sufficient energy to react increases. The answer is number 3.
Answer:
The differemt isotopes that differ in atomic mass
Explanation:
Of what?
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