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The substance in whose presence the rate...

The substance in whose presence the rate of a chemical reaction change without causing any chemical change to it

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CHETANA PUBLICATION-Chemical Reactions and equations-EXAMPLE
  1. Representation of a chemical reaction in a condensed from using chemic...

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  2. If the number of atoms of each element is not same on the two sides of...

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  3. The substance in whose presence the rate of a chemical reaction change...

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  4. The life on earth is protected form ultraviolet radiation of the sun.

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  5. What is a balanced chemical equation?

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  6. "We need to balance an unbalanced skeletal chemical equation".Justify ...

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  7. Giving an example list two infromation which make a chemical equation ...

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  8. What type of reaction takes place when vegatable matter is converted t...

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  9. What is rust?Write the chemical formula .

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  10. why respiration is considered an exothermic reaction?

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  11. Name the factors on which the speed of a chemical reaction depends

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  12. What is meant by reactants?

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  13. What is meant by the term products of a chemical reaction?

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  14. When carbon dioxide is passed through lime water it turns milky.Why?

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  15. What type of precipitate reaction is this Na2SO4+BaCl2rarrBaSO4+2NaCl.

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  16. What do you understand by precipitation reaction? Explain with example...

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  17. Which solution is used in voters ink?

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  18. What happens when a piece of zinc metal is added to copper sulphate so...

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  19. Which is the oxidant used for purification of drinking water?

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  20. Why is potassium permanganate used for cleaning of water tanks?

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