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Topic: Electrochemistry  (Read 3313 times)

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Offline ss4vegeta1

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Electrochemistry
« on: May 13, 2008, 01:15:50 PM »
When writing the equation for a net cell reaction, after you add both the reduction and oxidation formulas do you have the balance the formula and the charges including the gained and lose electrons(e-)?
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Offline DevaDevil

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Re: Electrochemistry
« Reply #1 on: May 13, 2008, 01:32:30 PM »
of course. The reaction is only balanced if there is no net change in charges.

electrons are only present in the half cell reactions; in the net cell reaction they should cancel out.
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Offline ss4vegeta1

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Re: Electrochemistry
« Reply #2 on: May 13, 2008, 01:41:32 PM »
Is this balanced? In charge too?
3Ag+(aq) + 3Fe(s)--->3Ag(s) + 3Fe+3(aq)

Thanks for responding
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Offline DevaDevil

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Re: Electrochemistry
« Reply #3 on: May 13, 2008, 01:58:19 PM »
reactant: 3 * 1+  = +3 charge
product: 3 * 3+ = +9 charge

so no, they aren't balanced
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