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A compound of sulphur often used as a pesticide.
A colourless, toxic gas with the characteristic odour of rotten eggs. It occurs in certain mineral waters and spring waters.
Electrochemical processes in a lead-acid battery produce electric current.
An exercise about compound ions.
An odourless, yellow, solid substance, the 16th most common in the Earth´s crust. One of the best known sulphur compounds is pyrite, also known as ´fool´s...
Sulphur dioxide emission is the main cause of acid rains. It is an intermediate product in the production of sulphuric acid.
One of the oxides of sulphur, forms sulphuric acid with water.
A colourless, viscous liquid, a highly corrosive, strong acid used in several industrial processes.
Colourless, moderate acid, only known in aqueous solution.
Potassium permanganate is used as a disinfectant.