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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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lexi68 lexi68
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12 years ago
The precipitation reaction that occurs when aqueous cobalt(II) chloride is added to aqueous potassium hydroxide...what is the molecular, complete ionic, and net ionic equations for each of the following precipitation reactions?

All I have so far is CoCl2 (aq)+2KOH(aq)---> CoOH2 (s) +2KCl(aq)
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#1
12 years ago
Molecular equation  - note (OH)2

CoCl2 (aq)+2KOH(aq)---> Co(OH)2 (s) +2KCl(aq)

Complete ionic

Co2+(aq)  + 2Cl- (aq)  + 2 K+ (aq) + 2 OH-(aq) ==> Co(OH)2 (s)   + 2 K+(aq)  + 2 Cl- (aq)

Remove spectator ions to give nett ionic equation

Co2+ (aq)  +  2 OH-(aq)   ==>  Co(OH)2 (s)
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