vCalcium-based antacids: Tums, Rennies
CaCO3 + 2HCl ¨ CaCl2 + H2CO3
H2CO3 ¨ H2O + CO2
vMagnesium-based antacids: Mylanta, Milk of
Magnesia
Mg(OH)2 + 2HCl ¨ MgCl2 + 2H2O
vAluminum-based antacids: Maalox, Mylanta
Al(OH)3 + 3HCl ¨ AlCl3 + 3H2O
vBicarbonate-based antacids: Alka Seltzer
NaHCO3 + 1HCl ¨ NaCl + H2CO3