Class 10 Chemistry: Chemical Reactions and Equations Formulas (PDF) — All Important Formulas Free

Free class 10 chemistry: chemical reactions and equations formulas — all 6 key formulas on one page, downloadable as PDF for fast revision before CBSE board exams. No signup.

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TL;DR: Free class 10 chemistry: chemical reactions and equations formulas — all 6 key formulas on one page, downloadable as PDF for fast revision before CBSE…

Written & reviewed by the Syllab.in Academic Team (CBSE/NCERT subject experts) · Updated Aug 26, 2026

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All Chemical Reactions and Equations formulas for Class 10 Chemistry (CBSE / NCERT) on one page — fast revision for board exams. 100% free, no login, download as PDF.

Chemical Reactions and Equations — Key Formulas

Formula	Expression
Chemical equation balance	Same atoms on both sides; use coefficients, NOT subscripts
Types of reactions	Combustion (O₂), decomposition, combination, displacement, redox
Exothermic reaction	Releases heat/energy to surroundings (ΔH < 0)
Endothermic reaction	Absorbs heat/energy from surroundings (ΔH > 0)
Redox definition	Oxidation = loss of e⁻; reduction = gain of e⁻
Oxidation state rules	Element = 0; monoatomic ion = charge; O usually -2; H usually +1

FAQs

What are the most important Chemical Reactions and Equations formulas for Class 10?

This sheet lists all 6 key Chemical Reactions and Equations formulas from the Class 10 Chemistry CBSE/NCERT syllabus, ready for quick revision.

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