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Write one equation for decomposition rea...

Write one equation for decomposition reactions where energy is supplied in the form of heat, light or electricity.

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`CaCO_(3)(s) overset("Heat") to CaO(s)+CO_(2)(g)`
`2AgCl(s) overset("Sunlight") to 2Ag(s)+Cl_(2)(g)`
`2H_(2)O(I) overset("Electricity")to 2H_(2)(g)+O_(2)(g)`
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CPC CAMBRIDGE PUBLICATION-CHEMICAL REACTIONS AND EQUATIONS-Exercise
  1. Which of the statement about the reaction below are incorrect ? 2PbO...

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  2. Fe(2)O(3)+2Al to Al(2)O(3)+2Fe the above reaction is an example of a

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  3. What happens when dilute hydrochloric acid is added to iron filling ? ...

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  4. What is a balanced chemical equation ? Why should chemical equations b...

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  5. Translate the following statements into chemical equations and then ba...

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  6. Write the balanced chemical equations for the following reactions. ...

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  7. Write the balanced chemical equation for the following and identify th...

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

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  9. Why is respiration considered an exothermic reaction ? Explain.

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  10. Why are decomposition reactions called the opposite of combination rea...

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  11. Write one equation for decomposition reactions where energy is supplie...

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  12. What is the difference between displacement and double displacement re...

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  13. In the refining of silver, the recovery of silver from silver nitrate ...

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  14. What do you mean by a precipitation reaction ? Explain by giving examp...

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

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  16. A shiny brown -coloured elemnt 'X' on heating in air becomes black in ...

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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. Explain the following terms with one example each . (a) Corrosion ...

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