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..
Cross-combinations give soluble salts. The rule that all nitrates are soluble falls into this category. Rule #4.The solubility of feebly basic anions such as sulfate are difficult to predict. The tendency of these salts to precipitate or not precipitate varies with the relative magnitude of the opposing entropy and enthalpy terms