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..
In Science. Sodium sulfate is somewhat soluble in cold water, but much more soluble in hot water. In fact, its solubility increases more than 10 times between 0oC and 32.4oC!2 people found this useful.n Science. Sodium sulfate is somewhat soluble in cold water, but much more soluble in hot water. In fact, its solubility increases more than 10 times between 0oC and 32.4oC!