Formaldehyde is a colorless, flammable, strong-smelling chemical that is used in building materials and to produce many household products.ormaldehyde is a colorless, flammable, strong-smelling chemical that is used in building materials and to produce many household products.
Actually most of the salts are insoluble in water. Not all the salts include chloride!!! And of those witch contain chloride, silver, led and mercury salts are insoluble!!! chemically speaking, not all salts are soluble in a particular solvent under normal conditions..
Rating Newest Oldest. Best Answer: Simple solubility rules: 1) ALL NH4+ salts are soluble in water-NO exceptions-therefore (NH4)2SO4 is soluble 2) Most SO4 2- salts are soluble-EXCEPT calcium (Ca2+), strontium (Sr2+), barium (Ba2+), silver (Ag+), lead (Pb2+), radium (Ra2+).ating Newest Oldest. Best Answer: Simple solubility rules: 1) ALL NH4+ salts are soluble in water-NO exceptions-therefore (NH4)2SO4 is soluble 2) Most SO4 2- salts are soluble-EXCEPT calcium (Ca2+), strontium (Sr2+), barium (Ba2+), silver (Ag+), lead (Pb2+), radium (Ra2+).