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(a) Why are decomposition reactions call...

(a) Why are decomposition reactions called the opposite of combination reactions ? Explain with equations of these reactions.
(b) Express the following facts in the form of a balanced chemical equation:
"When a strip of copper metal is placed in a solution of silver nitrate, metallic silver is precipitated and a solution containing copper nitrate is formed"

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The correct Answer is:
(b) Cu(s)+2AgNO_(3) (aq) to Cu(NO_(3))_(2)(aq)+2Ag (s)
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LAKHMIR SINGH & MANJIT KAUR-CHEMICAL REACTIONS AND EQUATIONS -Exercise
  1. (a) Define the following in terms of gain or loss of hydrogen with one...

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  2. What is menal by (a) displacement reactinon, and (b) double displaceme...

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  3. (a) Why are decomposition reactions called the opposite of combination...

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  4. (a) What heppens when a piece of iron metal is placed in copper sulpha...

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  5. In the reaction epresented by the following equation: CuO(s) +H(2)(g...

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  6. What happens when silver nitrate solution is added to sodium chloride ...

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  7. What happens when silver chloride is exposed to sunlight ? Write a che...

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  8. What happens when a zinc strip is dipped into a copper sulphate soluti...

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  9. (a) Explain the term "corrosion" with an example. Wriite a chemical eq...

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  10. (a) Explain the term "rancidity". What damage is caused by rancidity ?...

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  11. (a) What happens when an aqueous solutin of sodium sulphate reacts wit...

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  12. The removal of oxygen from a substance is called :

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  13. In the context of redox reactions, the removal of hydrogen from a subs...

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  14. The chemical reaction involved in the corrosion of iron metal is that ...

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  15. Which term is used to indicate the development of unpleasant smell and...

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  16. In order to prevent the spoilage of potato chips, they are packed in p...

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  17. A white precipitate can be obtained by adding dilute sulphuric acid to...

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  18. A white precipitate will be formed if we add common salt solution to :

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  19. Consider the following equation of the chemical reaction of a metal M ...

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  20. The process of respiration is:

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