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### Topic: Balancing Net Ionic Equation  (Read 14101 times)

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#### Neerolyte

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##### Balancing Net Ionic Equation
« on: September 27, 2005, 09:30:24 PM »
This is extremely shameful...but i seriously can't get this question.

Balance the NET IONIC EQUATION.
No species should appear on both sides of a properly balanced reaction equation. Therefore some coeffcient must be "0"

Quote
NO3-(aq) + Cu(s) + H+(aq) --> H2O(l) + NO3-(aq) + Cu^2+(aq) + NO2(g)

Ultimately i got

Quote
1NO3-(aq) + 1Cu(s) + 2H+(aq) --> 1H2O(l) + 0NO3-(aq) + 1Cu^2+(aq) + 1NO2(g)

i have no idea why that's wrong...i balanced the COMPLETE IONIC EQUATION then i cancel out one of the NO3, then shouldn't that be right?
« Last Edit: September 27, 2005, 09:30:46 PM by Neerolyte »

#### mike

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##### Re:Balancing Net Ionic Equation
« Reply #1 on: September 27, 2005, 09:44:45 PM »
Cu + HNO3 ---> NO + Cu(NO3)2 + H2O

This is the unbalanced equation for the reaction of Cu and nitric acid, is this the reaction you are trying?
There is no science without fancy, and no art without facts.

#### Neerolyte

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##### Re:Balancing Net Ionic Equation
« Reply #2 on: September 27, 2005, 09:51:37 PM »
Quote
NO3-(aq) + Cu(s) + H+(aq) --> H2O(l) + NO3-(aq) + Cu^2+(aq) + NO2(g)

this is the equation given

#### mike

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##### Re:Balancing Net Ionic Equation
« Reply #3 on: September 27, 2005, 10:00:23 PM »
4HNO3 + Cu ---> Cu(NO3)2 + 2NO2 + 2H2O

I think maybe you forgot to balance the charges(?)

What do you think of this?
There is no science without fancy, and no art without facts.

#### Neerolyte

• Guest
##### Re:Balancing Net Ionic Equation
« Reply #4 on: September 27, 2005, 10:44:32 PM »
oh okay
then the complete ionic equation of that will be

4H+ + 4NO3- + Cu --> Cu2+ + NO3- + 2NO2 + 2H2O

for the Net Ionic Equation

do i cancel the NO3 so i'll end up with 3 NO3 on the left and no NO3 on the left? because for a net ionic equation, your not suppose to have the same species on both sides of the equation.
« Last Edit: September 27, 2005, 10:46:27 PM by Neerolyte »

#### mike

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##### Re:Balancing Net Ionic Equation
« Reply #5 on: September 27, 2005, 11:22:43 PM »
there are 2 NO3- don't forget

so cancel two of them on both sides so the charges balance.
There is no science without fancy, and no art without facts.

#### Neerolyte

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##### Re:Balancing Net Ionic Equation
« Reply #6 on: September 27, 2005, 11:26:37 PM »
then the Os wouldn't be balanced...

arg i don't get it

#### mike

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##### Re:Balancing Net Ionic Equation
« Reply #7 on: September 27, 2005, 11:41:27 PM »
Yes the oxygen atoms do balance!

4H+ + 2NO3- + Cu ---> Cu2+ + 2NO2 + 2H2O
There is no science without fancy, and no art without facts.

#### Neerolyte

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##### Re:Balancing Net Ionic Equation
« Reply #8 on: September 27, 2005, 11:55:07 PM »
Oh yes oh yes i didn't see that 4NO3

Thank you so much

i got it now.