In everyday life, 'salt' means the white crystals you put on your food. But in chemistry, salt has a much broader definition and includes thousands of different compounds.
Common Salt Formula: NaCl (Sodium Chloride).
Salt Formation: Acid + Base → Salt + Water.
4 Types: Normal, Acidic, Basic, Double.
Baking Soda: NaHCO₃ (an acidic salt).
Washing Soda: Na₂CO₃·10H₂O (a basic salt).
In chemistry, a salt is an ionic compound formed when an acid reacts with a base (neutralization reaction). The H⁺ from the acid combines with the OH⁻ from the base to form water, and the remaining ions form the salt.
General Equation: Acid + Base → Salt + Water Example: HCl + NaOH → NaCl + H₂O
1. Normal Salt (Neutral Salt): Formed by complete neutralization. pH ≈ 7. Example: NaCl (Common Salt), KCl.
2. Acidic Salt: Formed when only partial neutralization occurs. pH < 7. Example: NaHCO₃ (Baking Soda), NaHSO₄.
3. Basic Salt (Alkaline Salt): Contains OH⁻ group. pH > 7. Example: Ca(OH)Cl (Bleaching Powder component).
4. Double Salt: Contains two different cations or anions. Example: Alum = KAl(SO₄)₂·12H₂O.
The most famous salt is Sodium Chloride (NaCl) — ordinary table salt. It is formed from Hydrochloric acid (HCl) + Sodium Hydroxide (NaOH).
The chemical formula of common salt (table salt) is NaCl — Sodium Chloride.
Salt is formed when an acid reacts with a base in a neutralization reaction: Acid + Base → Salt + Water.
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