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Write the chemical formulae of the follo...

Write the chemical formulae of the following.
(a) Magnesium chloride
(b) Calcium oxide
(c) Copper nitrate
(d) Aluminium chloride
(e) Calcium carbonate.

Text Solution

Verified by Experts

The correct Answer is:
(a) `MgCl_(2)`
(b) CaO
(c ) Cu `(NO_(3))_(2)`
(d) `AlCl_(3)`
(e) `CaCO_(3)`
`MgCl_(2)`
CaO
`Cu(NO_(3))_(2)`
`AlCl_(3)`
`CaCO_(3)`
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NCERT ENGLISH-ATOMS AND MOLECULES -Exercise
  1. Why is it not possible to see an atom with naked eyes?

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  2. Write down the formulae of (i) sodium oxide (ii) aluminium chlor...

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  3. Write down the names of compounds represented by the following formula...

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  4. What is meant by the term chemical formula?

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  5. How many atoms are present in a (i) H(2)S molecule and (ii) PO...

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  6. Calculate the molecular masses of H(2), O(2), Cl(2), CO(2), CH(4), C(2...

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  7. Calculate the formula unit masses of ZnO, Na(2)O, K(2)CO(3), given ato...

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  8. If one mole of carbon atoms weighs 12 grams, what is the mass (in gram...

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  9. Which has more number of atoms, 100 grams of sodium or 100 grams of ir...

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  10. A 0.24 g sample of compound of oxygen and boron was found by analysis ...

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  11. When 3.0 g of carbon is burnt in 8.00 g oxygen, 11.00 g of carbon diox...

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  12. What are polyatomic ions? Give examples.

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  13. Write the chemical formulae of the following. (a) Magnesium chlorid...

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  14. Give the names of the elements present in the following compounds. ...

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  15. Calculate the molar mass of the following substances. (a) Ethyne, ...

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  16. What is the mass of— (a) 1 mole of nitrogen atoms? (b) 4 moles ...

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  17. Convert into mole. (a) 12 g of oxygen gas (b) 20 g of water ...

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  18. What is the mass of: (a) 0.2 mole of oxygen atoms? (b) 0.5 mole ...

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  19. Calculate the number of molecules of sulphur (S(8)) present in 16 g of...

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  20. Calculate the number of aluminium ions present in 0.051 g of aluminium...

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