16 Sulfur

sulphuric acid

Concentrated ________ is corrosive and a powerful oxidising agent.

Oleum

________ is added to water to form concentrated sulfuric acid:

Sulfites

________ are often added to foods and these release sulfur dioxide in acidic conditions.

dilute solution

In ________ it is used as a catalyst in many organic reactions and to clean the surface of metals.

extra energy

It is not worth spending the ________ or money required to produce high pressures.

Sulfur dioxide

________ is used as a bleach in the manufacture of wood pulp for paper, and as a preservative for foods and drinks by killing bacteria.

sulfuric acid

Concentrated ________ is used in car batteries, making fertilisers, soaps and detergents.

acid drain cleaners

It is also used to make ________ and in the production of paints and dyes.

position of equilibrium

The reaction is exothermic, so increasing the temperature shifts the ________ to the left in the direction of the reactants.

Sulfur

________ is found in its elemental state underground in the USA, Mexico and Poland.

rubber tyres

It is also used extensively in making ________ more flexible (vulcanising), where the rubber is heated with sulfur.

sulphuric acid

Concentrated ________ is also a very powerful dehydrating agent and is very good at removing water from other substances.

sulfur dioxide

A higher pressure causes the ________ to liquefy.

Sulfuric acid

________ is a strong dibasic acid as two of its hydrogen atoms can be replaced by a metal.

Sulfur dioxide

________ can be made by burning sulphur in air.

Pressure

2 atm