2.5 Acids, Bases and Salts

chemistry

Acid Reactions with Metals and Carbonates

Acids and Metals
  • The most reactive metals, at the bottom of groups 1 and 2, react vigorously with water and acids.
  • All other metals are less reactive than those in groups 1 and 2.
  • When metals do react with acids, H2gas is usually released
  • 2HCl(aq) + Mg(s) --> MgCl2(s) + H2(g)
Acids and Carbonates
  • Carbonates (-CO3) neutralize acids, protecting locations with natural carbonate supplies from acid precipitation.
  • H2SO4(aq) + CaCO3(s) --> CaCO4(s) + H2O(aq) + CO2(g)

sulphuric acid + calcium carbonate --> calcium carbonite + water + carbon dioxide