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What are.the units of molar mass?...

What are.the units of molar mass?

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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. Define the terms : Mole.

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  2. What is the molecular mass of water?

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  3. What are.the units of molar mass?

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  4. How many molecules are there in 18 grams of water?

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  5. How many molecules are there in 18 grams of water?

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  6. We write symbol of water as H2O. State why should not we write it HO2'...

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  7. A shiny brown coloured element 'X' on heating in air becomes black in ...

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  8. A student was given the following substances and was asked to show typ...

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  9. Why does respiration considered as an exothermic reaction ? Explain.

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  10. Is 'Na' an element or compond? Why

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  11. Is O2 an element or compound? Why

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  12. ''Freshly cut apple turning brown, the iron articles shiny when new, b...

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  13. Take two beakers and prepare lead nitrate aqueous solution and potassi...

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  14. Latha take some quantity of powder of a substance in a test tube. Heat...

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  15. A light-yellow colour substance (some quantity) on a watch glass light...

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  16. What is the unit of atomic mass?

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  17. On the basis of molecular weights of NaOH and H2O, which is heavier?

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  18. Collect the symbols of various elements.

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  19. Give examples to different net charged ions ?

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  20. Prepare formulae for compounds by using Criss- Cross methods.

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