When considering free energy change, biochemists usually define a standard state, the biochemical standard state, which is modified from the chemical standard state to fit biochemical applications. Determine which of the phrases describe the biochemical standard state, the chemical standard state, or both. a. temperature is 25 °C b. delta G" (some texts use delta G") c. delta G d. initial concentration of reactants and products is 1 M e. pH 7 f. constant value for [Mg2] g. pressure is 1 atm h. the change in [H20] is assumed to be insignificant1. Biochemical standard state 2. Chemical standard state 3. Both