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13 terms

Ion Colors

STUDY
PLAY
Zn+2
colorless
Cu+2
aqua to turquoise
Ni+2
green
Co+2
pink (blue precip.)
Fe+2
pale green
Fe+3
orange rust
Mn+2
faint pink
MnO4-
deep purple
Cr+3
green
Cr+2
purple
CrO4-2
yellow
Cr2O7-2
orange
Cu(NH3)4+2
royal blue