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Sagot :
Answer:
C.
Explanation:
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In this case, according to the given chemical reaction:
[tex]Pb(NO_3)_2 (aq) + Na_2S(aq) \rightarrow PbS(s) + 2 NaNO_3(aq)[/tex]
We can see that at the end of the reaction solid PbS remain on the bottom of the beaker as it is a precipitate product whereas free sodium and nitrate ions remain in solution as sodium nitrate is an aqueous species. Therefore, the correct diagram would be C.
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