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Write the chemical formula of the follow...

Write the chemical formula of the following :Calcium oxide

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Formula of calcium oxide

`therefore` Formula of calcium oxide = `Ca_(2) O_(2)` or `CaO` .
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NAND LAL PUBLICATION-ATOMS AND MOLECULES -EXERCISES
  1. What are polyatomic ions ? Give examples.

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  2. Write the formula of magnesium chloride . Also name the elements prese...

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

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

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  5. Write down the formula of Aluminium chloride

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  6. Write the formula of calcium carbonate . Also name the elements presen...

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  7. Give the names of the elements present in the following compounds (a...

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  8. Calculate the molar mass of the following substances : Ethyne C 2 H 2

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  9. Calculate the molar mass of the following substances :Sulphur moleule,...

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  10. Calculate the molar mass of the following substances :Phosphorus molec...

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  11. Calculate the molar mass of the following substances :Hydrochloric aci...

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  12. Calculate the molar mass of the following substances : Nitiric acid,HN...

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  13. What is the mass of : 1 mole of nitrogen atoms ?

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  14. What is the mass of :) 4 moles of aluminium atoms (Atomic mass of alum...

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  15. What is the mass of : 10 moles of sodium sulphite (Na2SO3)?

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  16. Convert into moles : 12g of oxygen gas

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  17. Convert into moles : 20g of water

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  18. Convert into moles : 22g of carbon dioxide

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  19. What is the mass of : 0.2 mole of oxyen atoms?

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  20. What is the mass of: 0.5 mole of water molecules?

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