Flame Test – Match Up
Lithium (Li+)
Sodium (Na+)
Potassium (K+)
Barium (Ba2+)
Calcium (Ca2+)
Strontium (Sr2+)
Magnesium (Mg2+)
lilac
crimson
No colour
Yellow-orange
red
Brick red
lilac
Testing for Halide Ions – Fill in the blanks
Halide Ion
Chloride (Cl-)
Bromide (Br-)
Iodide (I-)
Observation on
adding AgNO3
Observation on
adding dil. HNO3
Observation on
adding conc. HNO3
Solubility trends – Complete the sentences
• The solubility of group 2 hydroxides increases/decreases
down the group
• The solubility of group 2 sulfates increases/decreases down
the group
• All of the group 2 carbonates are sparingly/readily soluble,
but tend to get slightly more/less soluble down the group.
P-Block hydroxide test
Metal Ion
Observation with OH-
Extension – write ionic
equations for each reaction
Observation with excess
OH-
Pb2+
Al3+
Cr3+
Fe2+
Fe3+
Cu2+
Precipitate remains
Red-brown precipitate
Precipitate remains
Precipitate dissolves to
form colourless solution
White precipitate
Precipitate dissolves to
form colourless solution
Grey-green precipitate
Precipitate dissolves to
form green solution
White precipitate
Dark green precipitate
Precipitate remains
Pale blue precipitate