Mercury 1 HCl
White ppt. of Hg₂Cl₂, then gray ppt. (HgNH₂Cl + Hg⁰)
Mercury KI TS
Yellow precipitate that turns green on standing
Mercury copper foil
Silvery metallic mercury deposit
Cadmium H2S
Yellow ppt. (orange-red in hot acidic soln.)
Lithium FORMULA
Li₂CO₃
Potassium
KHC₄H₄O₆
Ammonium
NH₃
Copper Ion
Cu(OH)2
Copper ion NH4OH excess
Cu(NH₃)
Silver HCl
AgCl → [Ag(NH₃)₂]
Silver Tollen’s test
Ag
Magnesium ion Na₂HPO₄ with NH₄Cl + NH₄OH
MgNH₄PO₄·6H₂O
Calcium NH4)2C2O4
CaC₂O₄
Barium
BaSO₄
Zinc H₂S in presence of CH₃COONa
ZnS
Zinc K₄[Fe(CN)₆]·3H₂O
Zn₂[Fe(CN)₆]
H₂S
HgS
Mercury KI (in neutral solution
HgI₂
Mercury 1 N NaOH
Hg₂O → HgO
Mercury 1 HCl
Hg₂Cl₂ + NH₄OH → HgNH₂Cl + Hg