Reactions of Acids

Subdecks (1)

Cards (21)

  • Metal oxides and metal hydroxides are bases
  • Some metal oxides and metal hydroxides dissolve in water. These soluble compounds are alkalis
  • Alkalis react with acids in neutralisation reactions
  • Even bases that don't dissolve in water will still take part in neutralisation reactions with acids
  • All metal oxides and metal hydroxides react with acids to form a salt and water
  • Acid + metal oxide -> salt + water
  • Acid + metal hydroxide -> salt + water
  • The salt that's produced depends upon the acid and the metal ion in the oxide or hydroxide
  • Hydrochloric acid + copper oxide -> copper chloride + water =
    2HCl + CuO -> CuCl2 + H2O
  • Sulfuric acid + potassium hydroxide -> potassium sulfate + water
    H2SO4 + 2KOH -> K2SO4 + 2H2O
  • Nitric acid + sodium hydroxide -> sodium nitrate + water
    HNO3 + NaOH -> NaNO3 + H2O
  • To work out the formula of an ionic compound, you need to balance the charges of the positive and negative ions so the overall charge of a compound is neutral
  • Acids and metal carbonates produce carbon dioxide
  • Metal carbonates are also bases. They react with acids to produce a salt, water and carbon dioxide
  • hydrochloric acid + sodium carbonate -> sodium chloride + water + carbon dioxide =
    2HCl + Na2CO3 -> 2NaCl + H2O + CO2
  • Sulfuric acid + calcium carbonate -> calcium sulfate + water + carbon dioxide =
    H2SO4 + CaCO3 -> CaSO4 + H2O + CO2