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What is a balanced chemical equation? Wh...

What is a balanced chemical equation? Why should chemical equations be balanced ?

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A balanced chemical equation has an equal number of atoms of different elements in the reactants and products. A chemical equation is balanced to satisfy the law of conservation of mass i.e. matter can neither be created nor destroyed in a chemical reaction.
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SWAN PUBLICATION-CHEMICAL REACTIONS AND EQUATIONS-TEXTBOOK EXERCISES
  1. Fe2O3 + 2Al rarr Al2O3 + 2Fe The above réaction is an example of a

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  2. What happens when dilute hydrochloric acid is added to iron filings? T...

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  3. What is a balanced chemical equation? Why should chemical equations be...

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  4. Translate the following statement into chemical equation and then bala...

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  5. Translate the following statements into chemical equation and balance ...

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  6. The molecular formula of sulphur dioxide is SO2 . calculate its molecu...

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  7. The molecular formula of methanol is CH3OH . calculate its molecular ...

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  8. The molecular formula of nitric acid is HNO3 . calculate its molecular...

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  9. The molecular formula of sulphuric acid is H2SO4 . calculate its mole...

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  10. Balance the following chemical equation: NaCl+AgNO3rarr AgCl+NaNO3

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  11. The molecular formula of ethanoic acid is CH3COOH . calculate its mol...

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  12. Write the balanced chemical equation for the following reaction. Cal...

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  13. The molecular formula of chloroform is CHCl3 . calculate its molecular...

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  14. The molecular formula of copper chloride is CuCl2 . calculate its mole...

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  15. The molecular formula of potassium sulphate is K2SO4 . calculate its m...

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

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

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

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

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

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