Acids= acids are sour in taste. acids change litmus paper into red colour , examples are hydrochloric acid , nitric acid etc
. Bases= bases are bitter in taste. bases change litmus paper in blue colour, example are sodium hydroxide, calcium hydroxide etc.

Acids, Bases, and Salts
Acids, bases, and salts are three important categories of chemical compounds with distinct properties and characteristics. Let's delve into the differences between them:

Acids
- Acids are substances that release hydrogen ions (H+) when dissolved in water.
- They have a sour taste and can turn blue litmus paper red.
- Examples of common acids include hydrochloric acid (HCl) and citric acid (found in citrus fruits).
- Acids have a pH value less than 7.
- They react with bases to form salts and water in a chemical reaction called neutralization.

Bases
- Bases are substances that release hydroxide ions (OH-) when dissolved in water.
- They have a bitter taste and feel slippery to the touch.
- Examples of common bases include sodium hydroxide (NaOH) and ammonia (NH3).
- Bases have a pH value greater than 7.
- They react with acids to form salts and water in a neutralization reaction.

Salts
- Salts are compounds composed of positively charged ions (cations) and negatively charged ions (anions).
- They are formed by the reaction between acids and bases.
- Salts are usually solid at room temperature and can be soluble or insoluble in water.
- Common examples of salts include sodium chloride (table salt) and calcium carbonate (found in limestone).
- Salts play a crucial role in various biological processes and industrial applications.
In summary, acids release hydrogen ions, bases release hydroxide ions, and salts are formed by the reaction between acids and bases. Each of these compounds has unique properties and uses in chemistry and everyday life.