Acids

An acid  is a substance which reacts with a base.Acids are identified as tasting sour, reacting with metals such as calcium, and bases like sodium carbonate. Aqueous acids have pHs less than 7, and turn blue litmus paper red.

See the link naming acids to know how to name acids.

Some of the properties of acids are given below:

1)It taste sour

2)change the color of litmus paper from blue to red.

3)reacts with certain metals to form gaseous H2

4)reacts with bases to form a salt and water.

Common acids used in household include vinegar, lemon juice and automobile battery acid. In weaker forms they add a sour taste to our food; in their stronger forms they are corrosive agents which can burn skin, and be used to etch or dissolve metal and even glass.

Examples of acids found in the laboratory or the work place include:Hydrochloric Acid: Also known as Muriatic Acid, this is a highly corrosive acid and is often used to clean calcium carbonate build up from the inside of kettles or from around water faucets and from shower heads;

Sulphuric Acid: This is a common acid in both the laboratory and industry. It is highly corrosive and economical to manufacture, which makes it the reagent of choice for many applications.

Phosphoric Acid: This acid removes rust and rust stains from metal tools and from car bodies undergoing repairs.

Nitric Acid: This is another acid used in laboratory as a reagent in many chemical tests and experiments due to the fact that almost all of its products (salts) are soluble in water.

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