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Question
Give an example of a double displacement reaction.
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Solution
In the reaction between silver nitrate and sodium chloride, silver swaps its nitrate ions for the chloride ions from sodium chloride, forming a silver chloride precipitate. The chemical reaction is:
\[\ce{AgNO3(aq) + NaCl(aq) -> AgCl(s) + NaNO3(aq)}\]
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Complete the following reaction, balance it and write the name of the products CuO + HCI →_________ + _________
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Give an example of a double displacement reaction other than the one given in the following Activity.
•Take about 3 mL of sodium sulphate
solution in a test tube.
• In another test tube, take about 3 mL of
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• Mix the two solutions given in the following fig.
• What do you observe?
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(c) Name the compound Y.
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Fill in the blank
In the type of reaction called ....................................., ions two compounds exchange their positive and negative radicals ions respectively.
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In a double displacement reaction such as the reaction between sodium sulphate solution and barium chloride solution:
- exchange of atoms takes place
- exchange of ions takes place
- a precipitate is produced
- an insoluble salt is produced
The correct option is:
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Which option denotes a double displacement reaction?
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(i) \[\ce{Pb + CuCl -> PbCl2 + Cu}\]
(ii) \[\ce{Na2SO4 + BaCl2 -> BaSO4 + 2NaCl}\]
(iii) \[\ce{C + O2 -> CO2}\]
(iv) \[\ce{CH4 + 2O2 -> CO2 + 2H2O}\]
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(i) Displacement reaction
(ii) Precipitation reaction
(iii) Combination reaction
(iv) Double displacement reaction
Write balanced chemical equation for the following word equation.
Lead nitrate + Potassium iodide → Lead iodide + Potassium nitrate
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Give scientific reason.
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