How should the enthalpy of an intermediate step be manipulated when used to produce an overall chemical equation?
A
Multiply the enthalpy by 1 if the chemical equation is reversed.B
Multiply the enthalpy by –1 if the chemical equation is reversed.C
Add 2 to the enthalpy if the coefficients must be doubled.D
Add 2 to the enthalpy if the coefficients must be cut in half.