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Topic: Chemical Reactions: 1ZnSO4 + 1BaNO3 ---> 1BaSO4 + 1ZnNO3  (Read 7483 times)

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happydude

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Chemical Reactions: 1ZnSO4 + 1BaNO3 ---> 1BaSO4 + 1ZnNO3
« on: March 22, 2006, 08:50:24 AM »
Hello,

I have another question regarding chemical reactions.

Write and balance equations for the following reaction:
zinc sulphate + barium nitrate

The answer I got was:
ZN2(SO4)2 + 2Ba(NO3)2 ---> Ba2(SO4)2 + 2Zn(NO3)2

The solution posted was:
1ZnSO4 + 1BaNO3 ---> 1BaSO4 + 1ZnNO3

Is my answer correct?  
Thanks

Earl
« Last Edit: March 22, 2006, 05:57:46 PM by Mitch »

Offline Borek

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Re:Chemical Reactions
« Reply #1 on: March 22, 2006, 08:55:49 AM »
Is my answer correct?

No. Check formulas for zinc and barium sulfates.
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happydude

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Re:Chemical Reactions
« Reply #2 on: March 22, 2006, 09:29:15 AM »
Hi,

I just looked it up and the correct formula for Zinc Sulphate is ZnSO4 and Barium Sulphate BaSO4.  I don't understand why its not Zn2(SO4)2 and Ba2(SO4)2 respectively since Zinc, Barium and Sulphate ion all have valance number of 2.
Thanks for the help

Earl

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Re:Chemical Reactions
« Reply #3 on: March 22, 2006, 09:53:10 AM »
All valence must be used and you (almost) always go for the simplest formula. So for example Na3Cl3 have all valences used, but it is not the simplest formula - NaCl is enough.
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happydude

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Re:Chemical Reactions
« Reply #4 on: March 22, 2006, 10:13:52 AM »
Thanks very much for the prompt reply.  It makes sense now! ;D

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