Asked by nina
Write a letter to persuade a friend that a change in temperature does not necessarily mean that a chemical change has occurred .
Answers
Answered by
DrBob222
Just a hint and you do the rest. Potassium nitrate (KNO3) dissolved in water gets colder but a chemical reaction has not taken place. That's just due to the bonds breaking and it takes energy to break the bonds of the KNO3 crystal lattice.
Answered by
unnamee
well the change has occured but not a physical change. The temperture changed by last week it being cold and this week its very warm so that's it
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