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What is meant by the term chemical formu...

What is meant by the term chemical formula?

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MBD-ATOMS AND MOLECULES -Example
  1. Write down the name of the compounds represented by the following form...

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  2. Write down the name of the compounds represented by the following form...

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  3. What is meant by the term chemical formula?

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  4. How many atoms are present in, H2S molecule

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  5. How many atoms are present in, PO4^(3-) ion?

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  6. Calculate the molecular masses of H2,O2,Cl2, CO2,CH4,C2H4,NH3,CH3OH.

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  7. Calculate the formmula unit mass of ZnO, Na2O,K2CO3.

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  8. If one mole of carbon atom weigh 12 grams. What is the mass ( in grams...

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  9. Which has more number of atoms, 100 gram of sodium or 100 gram of iron...

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  10. A 0.24 g of coumpound of oxgen and boron was found by analysis to con...

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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 formula of the following :Magnesium chloride

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  14. Write the chemical formula of the following :Calcium oxide

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  15. Write the chemical formula of the following :Copper nitrate

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  16. Write the chemical formula of the following :Aluminium chloride

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  17. Write the chemical formula of the following :Calcium carbonate

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  18. Give the names of the elements present in the following compounds :Qui...

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  19. Give the names of the elements present in the following compounds :Hyd...

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  20. Give the names of the elements present in the following compounds : Ba...

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