In which of the following solutions will [H3O+] be approximately equal to [CH3COO-]?
(a) 0.1 M CH3COOH
(b) 1x10^-7 M CH3COOH
(c) a solution containing both 0.1 M CH3COOH and 0.1 M CH3COONa?Explain

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

i think it's c. i'm not sure but i think so.