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

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…