Chemistry Module 1 unit 1 ... All notes on periodic table

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Group 2

  • All Group 2 oxides and hydroxides are bases.
  • They will neutralise by adding an acid to form a salt.
  • When you add water to an oxide it forms an hydroxide... Ca (OH)2
  • When you add an hydroxide to water it forms an alkaline solution, AS YOU GO DOWN THE GROUP THE SOULTION BECOMES MORE ALKALINE
  • Because there are more OH- ions present
  • CARBONATES
  • They are decomposed to form a metal oxide + carbon dioxide
  • AS YOU GO DOWN THE GROUP…

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