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Topic: Which of the following salts is least soluble in water?  (Read 2842 times)

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Offline helenee

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Which of the following salts is least soluble in water?
« on: April 19, 2019, 05:44:53 AM »
Which of the following salts is least soluble in water?

NiS, MgCl2, K2CrO4, Al2(SO4)3, Pb(NO3)2

The answer is NiS.

I know like dissolves like, but since they're all salts (ionically bonded), I don't quite know where to start. Please help me out!
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Offline chenbeier

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Re: Which of the following salts is least soluble in water?
« Reply #1 on: April 19, 2019, 07:02:24 AM »
Compounds of the 6th. group with transition metalls not solouble. Like Oxides, sulfides, selenides, etc.
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Offline helenee

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Re: Which of the following salts is least soluble in water?
« Reply #2 on: April 19, 2019, 09:06:36 AM »
Is that also part of the solubility rules?
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Offline chenbeier

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Re: Which of the following salts is least soluble in water?
« Reply #3 on: April 19, 2019, 10:49:51 AM »
No that is nature.
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Offline AWK

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Re: Which of the following salts is least soluble in water?
« Reply #4 on: April 19, 2019, 01:34:32 PM »
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