Answers

  • Brainly User
2014-04-17T17:51:49+05:30
Calcium carbonate is an organic compound found in shell of marine animals and in rocks all over the world.It need hotness to decompose or to dissolve.It involves exothermic reaction with water.and becoz it is hard so it need hotness.This is why hot water.
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2014-04-17T17:55:50+05:30
ANSWER .............................
   IT IS BECAUSE OF KINETIC ENERGY...THIS ENEGY'S PRODUCTION INCREASE AS RISE IN TEMPERATURE..THAT WHY WHEN MORE KINETIC ENERGY IS PRODUCED IT GET DISSOLVE FASTER...
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