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Chemical reactions and equations

Maharashtra Board · Class 10 · Science

Flashcards for Chemical reactions and equations — Maharashtra Board Class 10 Science. Quick Q&A cards covering key concepts, definitions, and formulas.

45 questions44 flashcards5 concepts

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44 Flashcards
Card 1Chemical reaction

What is a chemical reaction?

Answer

A chemical reaction is a process in which some substances undergo bond breaking and are transformed into new substances by formation of new bonds.

Card 2Reactants and products

What are reactants and products?

Answer

Reactants are the substances taking part in a chemical reaction. Products are the new substances formed after the reaction.

Card 3Physical and chemical change

Why does a chemical change differ from a physical change?

Answer

A physical change happens when only the state or form changes, often temporarily. A chemical change changes the composition of matter and is usually permanent.

Card 4Physical change

Classify this change: ice turning into water.

Answer

This is a physical change because only the state changes from solid to liquid. The composition of water remains the same.

Card 5Chemical change

Classify this change: cooking of food.

Answer

This is a chemical change because new substances are formed and the composition changes permanently.

Card 6Chemical equation

How is a chemical equation written?

Answer

Reactants are written on the left side, products on the right side, and an arrow shows the direction of the reaction. Plus signs connect multiple reactants or products.

Card 7Displacement reaction

Write the chemical equation for zinc and copper sulphate.

Answer

CuSO4(aq) + Zn(s) → ZnSO4(aq) + Cu(s)…

Card 8Displacement reaction

Why does zinc displace copper from copper sulphate?

Answer

Zinc is more reactive than copper, so zinc takes the place of copper in copper sulphate and forms zinc sulphate and copper.

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What are the important topics in Chemical reactions and equations for Maharashtra Board Class 10 Science?
Chemical reactions and equations covers several key topics that are frequently asked in Maharashtra Board Class 10 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Chemical reactions and equations — Maharashtra Board Class 10 Science?
Understand the core concepts first, then work through the 45 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many flashcards are available for Chemical reactions and equations?
There are 44 flashcards for Chemical reactions and equations covering key definitions, formulas, and concepts. Use them daily for 10–15 minutes for best results.

Sources & Official References

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

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