Sodium bicarbonate = baking soda ~ Alka seltzer. This will neautralize acids.
HCO3- + H+ --> H2CO3
(Bicarbonate reacts with acid, H+, to form carbonic acid.)
H2CO3 --> H2O + CO2
(Carbonic acid breaks down to form water and carbon dioxide).
This is also why increasing atmospheric CO2 leads to more acidic oceans. As the oceans absorb CO2, the CO2 + H2O --> H2CO3 (these reactions are in equilibrium).
This is also the buffer used in your blood, as bicarbonate can also neautralize bases: HCO3- + OH- --> CO3-2 + H2O, forming carbonate (-2 charge). This allows us to keep our blood between a very narrow pH.
Chemistry is cool!