Ions

Al3+
Aluminium
Clear ion.
NH4+
Ammonium
Clear ion.
Ba2+
Barium
Clear ion.
Ca2+
Calcium
Clear ion.
Cr3+
Chromium
Green ion.Oxidised to Cr2O72-, which is orange.
Cu+
Cupric
Cu2+
Copper
Blue ion.Reduced to copper, a brown solid.
H+
HydrogenClear ion.Reduced to form clear hydrogen gas.
Fe2+
Iron(II), ferrous
Green ion.Oxidised to form orange Fe3+.
Fe3+
Iron(III), ferric
Green ion.Reduced to form green Fe2+.
Pb2+
Lead
Clear ion.Reduced to lead metal, which is grey.
Li+
Lead metal
Clear ion.Reduced to lithium metal, which is silvery-white.
Mn2+
Manganese
Clear ion.
Hg2+
Mercury
Clear ion.
K+
Potassium
Clear ion.
Ag+
Silver
Clear ion.
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