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November 01, 2025, 12:21:20 pm
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Author Topic: chem help - quick q  (Read 664 times)  Share 

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luken93

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chem help - quick q
« on: April 05, 2010, 08:14:14 pm »
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Write an overall, and ionic equation for the reaction that occurs between:
a) Magnesium Sulfate and Sodium Sulfate
Is it no reaction or am I missing something?
MgSO4(aq)+Na2SO4(aq)->MgSO4(aq)+Na2SO4(aq)?
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Edmund

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Re: chem help - quick q
« Reply #1 on: April 05, 2010, 09:07:29 pm »
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No reaction will occur
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luken93

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Re: chem help - quick q
« Reply #2 on: April 05, 2010, 09:38:09 pm »
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ok thanks, got more q's though

Predict whether a reaction will occur and if so write a balanced equation

Cu+Pb(NO3)2
Would it be no reaction as they will both be aqueous solutions?

Mg+ZnCl2
The answer is MgCl2(aq)+Zn(s), but I'm not sure why they just "swap"
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Edmund

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Re: chem help - quick q
« Reply #3 on: April 05, 2010, 09:48:46 pm »
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Quote
Mg+ZnCl2
The answer is MgCl2(aq)+Zn(s), but I'm not sure why they just "swap"

That's a redox reaction

Not sure about the first though...
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luken93

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Re: chem help - quick q
« Reply #4 on: April 05, 2010, 10:00:52 pm »
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Quote from: Edmund on April 05, 2010, 09:48:46 pm
Quote
Mg+ZnCl2
The answer is MgCl2(aq)+Zn(s), but I'm not sure why they just "swap"

That's a redox reaction

Not sure about the first though...
ok, so what is a redox reaction?
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Edmund

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Re: chem help - quick q
« Reply #5 on: April 05, 2010, 10:11:49 pm »
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Notice the oxidation numbers of Mg and Zn change.

oxidation number changes from 0 to +2

oxidation number changes from +2 to 0
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