10. 4 Rainwater is acidic and ocean water is basic The main sources 1. rain is acidified as it falls through the air of acidic 2. acid enters lake from rain rainwater are 3. hydronium ions are neutralized by calcium carbonate released CO2 and so2 CO. H from limestone The damage of 2H30+CaCO3+3H20+C0 2+Ca2+ acidic rainwater 1. Rain is acidified as it falls depends on the through the air 2. acid enters lake from rain local geology. 3. hydronium ions concentration increases, with potential harm to the ecosystem10.4 Rainwater is acidic and ocean water is basic The main sources of acidic rainwater are CO2 and SO2 . The damage of acidic rainwater depends on the local geology. 1. rain is acidified as it falls through the air 2. acid enters lake from rain 3. hydronium ions are neutralized by calcium carbonate released from limestone 2H3O++CaCO3 3H2O+CO2+Ca2+ 1.Rain is acidified as it falls through the air 2. acid enters lake from rain 3. hydronium ions concentration increases, with potential harm to the ecosystem