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18 November, 09:42

Which example is a precipitation reaction?

A) Solid Fe combines with O2 gas to produce solid Fe2O3.

B) solid C6H12O6 combines with O2 gas to produce Co2 gas and H2O gas.

C) A solution of HCI mixes with a solution of NaOH to produce a solution of NaCI.

D) A solution of AgNO3 mixes with a solution of NaCI to produce solid AgCI and a solution of NaNO3.

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  1. 18 November, 10:04
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    The correct answer is option D.

    A solution of AgNO3 mixes with a solution of NaCl to produce solid AgCl and a solution of NaNO3.

    AgNO3 + NaCl = AgCl + NaNO3

    Precipitation is a kind of reaction that occur when cations and anions combine together in an aqueous solution and forms a precipitate.
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