For a chemical reaction, ΔH is equal to:
(a) Hₚᵣₒᵤₜₛ + Hᵣₑₐₜₐₙₜₛ
(b) Hₚᵣₒᵤₜₛ x Hᵣₑₐₜₐₙₜₛ
(c) Hₚᵣₒᵤₜₛ - Hᵣₑₐₜₐₙₜₛ
(d) Hₚᵣₒᵤₜₛ / Hᵣₑₐₜₐₙₜₛ