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(just want to check my answer)


what fact is the most important indicator that the following reaction will take place?


Ni(No3)2)aq) + K2S(aq) NiS(s) + 2KNO3(aq)

AThe reaction is a double displacement my answer
BA precipitate is formed.
CThe reactants are ionic compounds.
DThe products are ionic compounds.

Verified Answer :

Kalahira

The answer is B) A precipitate is formed. In the reaction Ni(No3)2)aq) + K2S(aq) -> NiS(s) + 2KNO3(aq), nickel(II) sulfide (NiS) is solid substance as indexed (s) while KNO3 is dissolved in water presented as index (aq). Therefore, if the reaction is successful, a precipitate (the solid substance NiS) will be formed,

Answer:

b a precipitate is formed

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