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3 years ago

Which compound is insoluble in water? (1) BaSO4 (3) KClO3 (2) CaCrO4 (4) Na2S

Chemistry

2 answers:

frozen [14]3 years ago

8 0

Answer: $BaSO_4$

Explanation:

A precipitation reaction is a special type of double displacement reaction.

$BaSO_4$ is an insoluble compound as it is does not dissolve in water, and thus formed as a soild or a precipitate.

The sulfate ion $SO_4{2-}$ form insoluble compounds when combined with $Ba^{2+}$ .

The chlorate ion $ClO_3^-$ form soluble compounds with all positive ions.

The chromate ion $CrO_4^{2-}$ form insoluble compounds with all ions but soluble with $Ca^{2+$ .

The sulfide ion $S^{2-}$ form insoluble compounds with all ions except when combined with $Na^+$ or $NH_4^+$

pav-90 [236]3 years ago

7 0

BaSO4
I hope this helps!

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