Question

the change in enthalpy of a reaction is equal to the enthalpy of the ___ minus the enthalpy of the __.
products; reactants
none of the above
reactants; products

Explanation:

The formula for the change in enthalpy ($\Delta H$) of a reaction is $\Delta H = H_{\text{products}}-H_{\text{reactants}}$, where $H_{\text{products}}$ is the enthalpy of products and $H_{\text{reactants}}$ is the enthalpy of reactants.

Answer:

products; reactants