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Write the formula of sodium chloride . A...

Write the formula of sodium chloride . Also write the elements present in it.

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Element .X. is copper and the black coloured compound formed is copper (II) oxide i.e. CuO
`underset("Copper")(2Cu) + O_2 overset("Heat")to underset("Copper (II) oxide")(2CuO)`
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SWAN PUBLICATION-CHEMICAL REACTIONS AND EQUATIONS-TEXTBOOK EXERCISES
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  2. The molecular formula of potassium sulphate is K2SO4 . calculate its m...

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  3. The molecular formula of potassium bromide is KBr. calculate its molec...

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  4. The molecular formula of zinc carbonate is ZnCO3 . calculate its molec...

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  5. The molecular formula of zinc oxide is ZnO . calculate its molecular m...

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  6. The molecular formula of bromoform is CHBr3 . calculate its molecular ...

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  7. What does one mean by exothermic and endothermic reactions ? Give exam...

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  8. The molecular formula of hydrogen sulphide is H2S . calculate its mole...

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  9. The molecular formula of carbon disulphide is CS2 . calculate its mole...

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  10. The molecular formula of hydrogen chloride is HCl. calculate its molec...

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  11. The molecular formula of aluminium chloride is AlCl3 . calculate its m...

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  12. What do you mean by ions ?

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  13. Write the formula of zinc sulphate. Also write the elements present in...

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  14. Explain the following in terms of gain or loss of oxygen with two exam...

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  15. Explain the following in terms of gain or loss of oxygen with two exam...

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  16. Write the formula of sodium chloride . Also write the elements present...

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  17. Why do we apply paint on iron articles?

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  18. Oil and fat containing food items are flushed with nitrogen why?

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  19. Write the formula of calcium chloride . Also write the elements presen...

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  20. Explain the following term with one example : Rancidity.

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