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Formula Sheet

Chemical Reaction and Equations — Formula Sheet

NIOS · Class 10 · Science & Tech

10 formulas from Chemical Reaction and Equations (NIOS Class 10 Science & Tech) on one page, grouped by topic.

45 questions36 flashcards10 formulas & key relations5 concepts

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A comparison diagram illustrating the differences between physical changes (e.g., melting ice, boiling water, tearing paper) where no new substance is formed, and chemical changes (e.g., burning wood,
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10 Entries · 4 Sections

Formulas and Key Relations

Chemical Changes and Equations

Reactants -> Products

Mg + O2 -> MgO

2Mg + O2 -> 2MgO

Balancing Chemical Equations

3Fe + 4H2O -> Fe3O4 + 4H2

Types of Chemical Reactions

CaO(s) + H2O(l) -> Ca(OH)2(aq)

CaCO3(s) -> CaO(s) + CO2(g)

Na2SO4(aq) + BaCl2(aq) -> BaSO4(s) + 2NaCl(aq)

Fe(s) + CuSO4(aq) -> FeSO4(aq) + Cu(s)

Exothermic Reactions and Daily Life

CH4(g) + 2O2(g) -> CO2(g) + 2H2O(g)

C6H12O6(aq) + 6O2(aq) -> 6CO2(aq) + energy

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Frequently Asked Questions

What are the important topics in Chemical Reaction and Equations for NIOS Class 10 Science & Tech?
Key topics in Chemical Reaction and Equations include Chemical Changes and Chemical Equations, Balancing Equations and Important Conditions, Mole, Mass, and Volume Relations, Types of Chemical Reactions. Study these first, then practise questions on each for the NIOS Class 10 board exam.
How many formulas are in Chemical Reaction and Equations?
This sheet lists 10 formulas from Chemical Reaction and Equations, grouped by topic. Learn what each symbol stands for so you can apply the formula, not just recall it.
How should I revise Chemical Reaction and Equations for the NIOS Class 10 board exam?
Learn the core ideas first, then work through the 45 practice questions on Chemical Reaction and Equations. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All NIOS Class 10 Science & Tech Formula Sheet

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