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ICSE Class 10 Chemistry: Complete Formula Sheet — Equations & Laws 2026
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Tushar Parik
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2 min read
ICSE Class 10 Chemistry: Complete Formula Sheet — Equations & Laws 2026
This comprehensive guide from Bright Tutorials covers everything you need to know — with clear explanations, exam tips, and key points for board exam preparation.
In This Article
Mole Concept Formulas
- Number of moles = Given mass / Molar mass
- Number of particles = n × 6.022 × 10²³
- Molar volume at STP = 22.4 L/mol
- Vapour density = Molar mass / 2
- Gay-Lussac's Law: Gases react in simple volume ratios
Electrolysis Formulas
- Faraday's First Law: m = ZIt
- Z = Equivalent weight / 96500
- 1 Faraday = 96500 coulombs = charge to deposit 1 equivalent
- Charge Q = It (coulombs)
Important Reactions — Acids & Bases
- Acid + Metal → Salt + H₂
- Acid + Base → Salt + H₂O (Neutralisation)
- Acid + Carbonate → Salt + H₂O + CO₂
- Acid + Metal Oxide → Salt + H₂O
Important Reactions — Metallurgy
- Calcination: CaCO₃ → CaO + CO₂
- Roasting: 2ZnS + 3O₂ → 2ZnO + 2SO₂
- Reduction: ZnO + C → Zn + CO
- Thermite: Fe₂O₃ + 2Al → Al₂O₃ + 2Fe
Periodic Trends
- Across period (L→R): atomic size ↓, ionisation energy ↑, electronegativity ↑, metallic character ↓
- Down group: atomic size ↑, ionisation energy ↓, electronegativity ↓, metallic character ↑
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