nathanlong
nathanlong
04-03-2016
Health
contestada
Why does a substance change states?
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brave05
brave05
04-03-2016
Because the molecules in an object either expand when warm or contract if its cold
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Аноним
Аноним
09-03-2016
A substance changes states because, the molecules in a object has to spread out and move quickly when it's warmer and moves slower if the subtance is getting colder.
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