Acids, bases, and salts are fundamental categories of chemical substances that play a crucial role in chemistry and everyday life.
- Acids are substances that release hydrogen ions (H⁺) when dissolved in water. They usually have a sour taste and can turn blue litmus paper red. Common examples include hydrochloric acid (HCl) and sulfuric acid (H₂SO₄).
- Bases are substances that release hydroxide ions (OH⁻) in aqueous solutions. They are generally bitter in taste and turn red litmus paper blue. Examples include sodium hydroxide (NaOH) and potassium hydroxide (KOH).
- Salts are formed when an acid reacts with a base in a neutralization reaction. They consist of positive and negative ions other than H⁺ and OH⁻. For example, sodium chloride (NaCl) is formed from hydrochloric acid and sodium hydroxide.
In simple terms:
Acids donate H⁺ ions, bases provide OH⁻ ions, and salts are the products formed when acids and bases react with each other.