Question

The dissolution of calcium chloride in water is given by the following equation:

CaCl2(s) + 2H2O → Ca(OH)2(aq) + 2HCl(g) + heat

How would an energy graph of this reaction appear?

(1 point)
Responses

The reactants and products would appear at a low energy state.
The reactants and products would appear at a low energy state.

The reactants and products would appear at a high energy state.
The reactants and products would appear at a high energy state.

The reactants would appear at a higher energy state than the products.
The reactants would appear at a higher energy state than the products.

The reactants would appear at a lower energy state than the products.
The reactants would appear at a lower energy state than the products.
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Answer 1

The reactants would appear at a higher energy state than the products.

Reason: the process is exothermic (heat is released), so the products are at lower enthalpy than the reactants on the energy diagram.