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OpenStudy (anonymous):
why when you mix Epsom salt and water is the reaction endothermic?
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OpenStudy (wolfe8):
Welcome to OpenStudy. Well, when you mix salt into water, what happens? It dissolves. When something dissolves, what does this mean to its bonds?
OpenStudy (aayushi.somani):
it dissolves with this happening: MgSO4 . 7H2O(s) --> MgSO4(aq) ΔH = + 6.5 kJ that is an endothermic happening, the water will get colder as it loses its heat energy to the MgSO4(aq)
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