Characteristics of an acid:

1. It turns blue litmus paper to red

2. It tastes sour. Try drinking lemon juice (citric acid)

3. Corrode metals

4. Reacts with bases to form salts and water

Characteristics of a Base:

1. A bitter taste.

2. It feels slippery. (Soapy Water)

3. It turns red litmus to blue.

4. Reacts with acids to form salts and water

Arrhenius Theory: According to this theory an acid (HA) is a substance that breaks

into H+ ions in an aqueous solution.

A Base (MOH) is a substance that breaks into OH- ions in an aqueous solution.

Bronsted-Lowry Theory: It defines an acid as a proton donor, a base as a proton

acceptor and an acid-base reaction as a proton transfer reaction.

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