Question

What does the chemical formula, MgSO4 * 7H2O, become when the hydrated is heated?

I got so far is

MSO4 * 7H2O + Heat ---> MgSO4 + H + O
It depends upon exactly hot it gets; i.e., how much it is heated but these problems usually mean you are driving off the water and not decomposing the water.
MgSO4.7H2O + heat ==> MgSO4 + 7H2O

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