Core
Reactions: Acid-base
Slide 24 of 42
Examples of
reactions with carbonates
Reaction
with carbonate
Na2CO3 (s) + 2HCl (aq) ® 2NaCl (aq) + CO2 (g) + H2O (l)
Full
ionic equation:
2Na+ (aq) + CO32 -(aq) + 2H+ (aq) + 2Cl- (aq) ® 2Na+ (aq) + 2Cl- (aq) + CO2 (g) + H2O (l)
Net
Ionic equation
CO32 -(aq) + 2H+ (aq) ® CO2 (g) + H2O (l)
Reaction
with hydrogencarbonate
NaHCO3 (s) + HCl (aq) ® NaCl (aq) + CO2 (g) + H2O (l)
Full
ionic equation:
2Na+ (aq) + HCO3 -(aq) + H+ (aq) + Cl- (aq) ® Na+ (aq) + Cl- (aq) + CO2 (g) + H2O (l)
Net
Ionic equation
HCO32 -(aq) + H+ (aq) ® CO2 (g) + H2O (l)
How would the equations vary if a weak
acid were used?