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What do you understand by the term chemi...

What do you understand by the term chemical formula ?

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MBD-ATOMS AND MOLECULES -Example
  1. Give one experiment to prove the truth of law of conservation of mass.

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  2. Differentiate between an atom and a molecule.

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  3. What do you understand by the term chemical formula ?

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  4. What qualitative information is given by the formula NH3

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  5. Write down the formula of :Aluminium oxide

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  6. Write down the formula of :Aluminium chloride

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  7. Write down the formula of : Hydrogen sulphide

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  8. Calculate the relative molecular masses of : Water (H2O)

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  9. Calculate the relative molecular masses of : Nitric acid (HNO3)

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  10. Write down the names of the compounds represented by the following for...

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  11. Write down the names of the compounds represented by the following for...

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  12. Write down the names of the compounds represented by the following for...

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  13. Write down the names of the compounds represented by the following for...

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  14. Write down the names of the compounds represented by the following for...

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  15. Write down the names of the compounds represented by the following for...

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  16. Write down the names of the compounds represented by the following for...

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  17. Work out the formula of :) Ammonia

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  18. Work out the formula of :Carbon dioxide

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  19. Work out the formula of : carbon tetrachloride

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  20. Calculate the number of moles in : 52g of He

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