How many milliliters of 0.188 M HClO 4 solution are needed to neutralize 50.00 mL of 0.0789 M NaOH? a) 119
b) 0.742
c) 21.0
d) 0.0477
e) 8.39x10^-3

The activation energy for the reaction no2(g)+co2(g)⟶no(g)+co(g) is ea = 300 kj/mol and the change in enthalpy for the reaction is δh = -100 kj/mol . what is the activation energy for the reverse reaction?