Sulfur dioxide (SO₂)
Sulfur dioxide emission is the main cause of acid rains. It is an intermediate product in the production of sulfuric acid.
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This animation demonstrates the main sources of air pollution: agriculture, industry and urban settlements.
Colorless, odorless gas, highly toxic to humans and animals in high concentration.
A compound of sulfur often used as a pesticide.
A colorless, toxic gas with the characteristic odor of rotten eggs. It occurs in certain mineral waters and spring waters.
A colorless, heavier-than-air gas, an intermediate in the production of nitric acid.
The ozone layer filters the Sun´s harmful UV radiation, therefore it is indispensable for life on Earth.
A compound ion produced when sulfuric acid releases protons.
An odorless, yellow, solid substance, the 16th most common in the Earth´s crust. One of the best known sulfur compounds is pyrite, also known as ´fool´s gold´.
One of the oxides of sulfur, forms sulfuric acid with water.
A colorless, viscous liquid, a highly corrosive, strong acid used in several industrial processes.
Colorless, moderate acid, only known in aqueous solution.
An exercise about compound ions.