1. No category

Flame Tests:
Sodium (Yellow)
Lithium (Red)
Magnesium (White)
Calcium (Orange/Red)
Strontium (Red)
Gases:
Copper (Green/Blue)
Cl2(g),
Potassium (Pink/Purple)
Br2(g),
I2(g)
Solutions/Solids:
The solids in water will give the solution the
color of the solid!
Cr2O3 solid
(Cr in +3
oxidation state)
CrO3 solid
(Cr in +6 oxidation
state)
Co2+, Mn2+, Cr3+,
Cobalt can be all colors.
Nickel always green.
Fe3+,
Ni2+
Permanganate ion
(MnO4-1 with Mn in
+8 oxidation state)
2+
**but Mn is clear.
Dichromate ion
(Cr2O72- with Cr in
+6 oxidation state)
FeS solid
(iron in +2 oxidation
state)
Zn2+ aqueous and
clear!
CuSO4(aq)
(like in hydrate lab)
CuCl2 solid
Chromate ion
(CrO42- with Cr in
+6 oxidation state)
**Copper ions blue
or green.
BaCO3(s)
AgCl(s)
BaSO4(s)
AgI(s)
*yellow like PbI2
from Ksp lab.
Ag2S(s)
↑
Ag2CO3(s)
Mg(OH)2(s)
PbI2(s)
(Ksp lab)
PbCl2(s)
*Remember the flask with acid and
phenolphthalein is clear, as base is added it
turns pink!!!! (It’s pink when basic.)