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On what basis is a chemical equation bel...

On what basis is a chemical equation belanced ?

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Law of conservation of mass - mass can neither be created nor destroyed but can be converted from one form to another.
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ZEN PUBLICATION-CHEMICAL REACTIONS AND EQUATIONS-ZEN ADDITIONAL QUESTIONS SECTION (VERY - SHORT - ANSWER [VSA] TYPE QUESTIONS )
  1. Differentiate between physical and chemical change.

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  2. State one difference between physical and chemical change.

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  3. On what basis is a chemical equation belanced ?

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  4. Name and state the law which is kept in mind while we balanced a chemi...

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  5. What change in colour is observed when white silver chloride is left e...

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  6. What happens chemically when quicklime is added to water filled in a b...

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  7. Is burning of a candle wax a physical change or a chemical change ?

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  8. Why do fireflies glow at night

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  9. Name the type of reaction in which energy is abdorbed.

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  10. Grapes hanging on plant do not ferment but after being plucked from th...

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  11. The internal energy of the system increases when the following reactio...

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  12. Classify the following as exothermic and endothermic reactions. Phot...

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  13. Classify the following as exothermic and endothermic reactions. resp...

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  14. Write the type of chemical reaction in the following. reaction betwe...

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  15. Write the type of chemical reaction in the following. rusting of iro...

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  16. Which two gases are evolved when ferrous sulphate is heated ?

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  17. What is a redox reaction ?

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  18. Why do potato - chips manufactures fill the packest of chips with nitr...

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  19. Surface of metals loses their brightness when kept in air for a long t...

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  20. Give two wxamples from daily where redox reactions are taking place.

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