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When aqueous solutions of Ni(NO3)2 and CrCl2 are mixed, does a precipitate form? If so, write...

When aqueous solutions of Ni(NO3)2 and CrCl2 are mixed, does a precipitate form? If so, write a balanced equation for the precipitation reaction that occurs when aqueous solutions of chromium(II) nitrate and potassium phosphate are combined.

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Answer #1

CrCl2(aq)+Ni(No3) 2(aq) - - - -> Cr(NO3)2(aq)+NiCl2(aq)

No precipitate's are formed in the above reaction.

3Cr(NO3)2(aq)+2K3PO4(aq) - - - - >Cr3(PO4​​​​​​) 2(s)+6KNO3(aq)

Phosphate's are insoluble except group 1like sodium or potassium phosphate.

Chloride's are soluble except lead, silver, Hg2+ chlorides.

All nitrates are soluble.

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