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Topic: CoCl2(s) + ... (need solving chemical reactions)  (Read 6028 times)

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Offline alaa_137

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CoCl2(s) + ... (need solving chemical reactions)
« on: November 13, 2007, 05:14:53 PM »
Hey can anyone solve these equations (chemical reaction) for me please?

HCl(aq) + CoCl2(s) -->

HNO3(aq) + CoCl2(s) -->

H3CCOOH(aq) + CoCl2(s) -->

KCl(aq) + CoCl2(s) -->

KOH(aq) + CoCl2(s) -->

thanks in advacne
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Offline Borek

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Re: CoCl2(s) + ... (need solving chemical reactions)
« Reply #1 on: November 13, 2007, 05:27:41 PM »
No. That's not the way it works. Nobody is going is to solve questions for you - but once you start, we will help.

Please read forum rules.
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Offline alaa_137

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Re: CoCl2(s) + ... (need solving chemical reactions)
« Reply #2 on: November 13, 2007, 05:45:55 PM »
well how about this:

HCl(aq) + CoCl2(s) --> CoCl3+(aq) + ½H2(g)

umm and why here HCl(aq) + CoCl2(s) the color becomes pink, whereas here KOH(aq) + CoCl2(s) it becomes blue then brown?
i'm sure it depends in its PH but can you explain?
« Last Edit: November 13, 2007, 06:07:11 PM by alaa_137 »
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Offline Borek

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Re: CoCl2(s) + ... (need solving chemical reactions)
« Reply #3 on: November 13, 2007, 06:36:36 PM »
Do you know solubility rules?
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Offline alaa_137

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Re: CoCl2(s) + ... (need solving chemical reactions)
« Reply #4 on: November 13, 2007, 06:38:38 PM »
ummm yeah i do
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Offline Borek

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Re: CoCl2(s) + ... (need solving chemical reactions)
« Reply #5 on: November 13, 2007, 07:11:29 PM »
What about cobalt (II) hydroxide?
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