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A crystalline substance, an extremely important material in the electronics industry ...
A colourless, odourless, non-reactive gas, it constitutes 78.1% of Earth´s atmosphere.
Glass items are an integral part of everyday life. But how are they made?
A colourless, heavier-than-air gas, an intermediate in the production of nitric acid.
A compound ion generated when a proton is added to an ammonia molecule.
Decomposition of ammonium dichromate by heating.
Colourless, odourless gas, highly toxic to humans and animals in high concentration.
Potassium permanganate is used as a disinfectant.