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Imagine what would happens if we do not ...

Imagine what would happens if we do not standard symbols for elements.
(OR)
is it necessary to use symbols for elements? Write your opinion.

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  • ATOMS AND MOLECULES

    VGS PUBLICATION-BRILLIANT|Exercise OBJECTIVE TYPE QUESTION|1 Videos

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VGS PUBLICATION-BRILLIANT-ATOMS ,MOLECULES AND CHEMICAL REACTIONS-EXERCISE
  1. 15.9 of copper sulphate and 10.6 g of sodium carbonate react together ...

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  2. Carbon dioxide is added to 112 g of calcium oxide. The product formed ...

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  3. Imagine what would happens if we do not standard symbols for elements....

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  4. Fe(2)O(3)+2AlrarrAl(2)O(3)+2Fe The above reaction is an example of :

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  5. What happens when dil. Hydrochloric acid is added to iron filing ? Cho...

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  6. 2PbO((s))+C((s))rarr2Pb((s))+CO(2(g)) Which of the following stateme...

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  7. The chemical equation BaCl(2)+Na(2)SO(4)rarrBaSO(4)+2NaCl represents...

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  8. The reaction of formation hydrogen chloride from hydrogen and chlorine...

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  9. What is neutralization ? Explain an activity to demonstrate neutraliza...

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  10. Define chemical combination and give an example.

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  11. Explain an activity to demonstrate decomposition.

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  12. What is chemical decomposition ? Explain with an example.

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  13. What will happen when calcium carbonate was heated?

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  14. Show that lead nitrate on heating produces nitrogen dioxide.

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  15. Explain how decomposition reaction takes place.

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  16. Explain the process of electrolysis of water.

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  17. How do you separate O2 and H2 from water in your chemical laboratory?

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  18. What is a photochemical reaction? Give one example.

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  19. What changes do you observe when silver bromide exposed to sunlight?

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  20. How do you demonstrate displacement reaction?

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