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What is meant by the term physical chang...

What is meant by the term physical change?
Give an example.

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(i) When the physical state of the substance changes but its chemical composition remains same, then it is said that a physical change has taken place.
(ii) Physical change is often temporary in nature.
(iii) During a physical change, new substances are not formed.
(iv) Example : Condensation of steam.
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TARGET PUBLICATION-CHEMICAL REACTIONS AND EQUATIONS-Answer the following
  1. What is meant by the term physical change? Give an example.

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  2. Give four examples of physical change.

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  3. Give four examples of chemical change.

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  4. Define the term Chemical reaction

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  5. Explain the term reactant and product giving examples.

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  6. What are the important conventions followed while writing a chemical e...

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  7. AgNO(3(aq)) +NaCl(aq)rarr AgCl uarr +NaNO(3(ag)) Consider the above...

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  8. FeS(a)+H(2)SO(4(aq))rarrFeSO(4(aq))+H2Suarr Consider the above ment...

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  9. Balance the following equation stepwise. HaS2O(l)rarr H2SO(4(l))

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  10. Balance the following equation stepwise. SO(2(g))+H2S((aq))rarrS((s...

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  11. Balance the following equation stepwise. Ag((s))+HCl((aq))rarrAgCld...

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  12. Balance the following equation stepwise. NaOH((aq))+H2SO(4(aq))rarrN...

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  13. What are the types of chemical reactions in accordance with the natur...

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  14. Explain the following terms with examples . Balanced equation

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  15. Explain the following terms with examples . Combination reation

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  16. Explain the following terms with examples . Decomposition reaction

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  17. Explain the following terms with examples . Displacement reaction

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  18. What is double displacement reaction ? Give one example.

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  19. Give an example of endothermic reaction.

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  20. Give an example of exothermic reaction.

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