Which equation correctly relates the heat of reaction to the standard heats of formation?
∆H° = ∆Hf ° (products) + ∆Hf ° (reactants)
∆H° + ∆Hf ° (products) = ∆Hf ° (reactants)
∆H° = ∆Hf ° (products) – ∆Hf ° (reactants)
∆H° – ∆Hf ° (reactants) = ∆Hf ° (products)