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A solid, grey substance which sublimates when heated. Its solution in alcohol is called...
An allotrope of oxygen, consisting of 3 oxygen atoms.
Colourless, odourless gas, highly toxic to humans and animals in high concentration.
Limestone is a widely and diversely used material.
A compound formed as white smoke during the combustion of phosphorus.
Water is a very stable compound of hydrogen and oxygen, vital for all known forms of...
Colourless, moderate acid, only known in aqueous solution.
A colourless gas with a pungent odour, its solution in water is called hydrochloric acid.