Net Ionic Equation

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halle young 4A
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Net Ionic Equation

Postby halle young 4A » Sun Oct 06, 2019 4:33 pm

Copper (II) nitrate reacts with sodium hydroxide to produce a precipitate of light blue copper (II) hydroxide what is the net ionic equation for the reaction?

what is a net ionic equation?

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Re: M9

Postby Chem_Mod » Sun Oct 06, 2019 5:26 pm

A net ionic reaction is an equation listing only the species involved in the reaction.

In this case, the question wants us to examine the product of Cu(II)OH, wo we should only examine these species in our net ionic equation. Thus we can leave out the nitrate and sodium because it is not seen in Cu(II)OH. Resulting in, (Cu)2+ + 2(OH)- ==> Cu(OH)2

Also, when asking a question, please do not title it like "M9", instead write the topic, which should have been something like "net ionic equation." Thanks :)

Petrina Kan 2I
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Re: Net Ionic Equation

Postby Petrina Kan 2I » Sun Oct 06, 2019 11:30 pm

Yes, a net ionic equation is basically everything the previous reply stated. Just wanted to add that the net ionic equation is not the full equation-- it is the equation after removing the "spectator ions", or the ions that are basically useless in forming the desired product and do not take part in the reaction. Thus, we just remove them.

Jamie Hwang 2F
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Re: Net Ionic Equation

Postby Jamie Hwang 2F » Thu Oct 10, 2019 12:01 am

Will we have to know net ionic equations for the test? I heard that we only need to know the topics that Professor Lavelle goes over in lecture but a net ionic equation was on a HW problem M9 so I was just wondering.

Montana James 4G
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Re: Net Ionic Equation

Postby Montana James 4G » Thu Oct 10, 2019 12:40 am

For questions asking about net ionic equation, you do also have to write the full balanced equation in order to calculate percent yield and other information about the products, right?

Jialun Chen 4F
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Re: Net Ionic Equation

Postby Jialun Chen 4F » Thu Oct 10, 2019 2:23 am

For that' you might want to review the solubility of substances and review the definition of a spectator ion.

Ziyan Wang 3J
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Re: Net Ionic Equation

Postby Ziyan Wang 3J » Thu Oct 10, 2019 12:00 pm

(Cu)2+ (aq) + 2(OH)- (aq) ==> Cu(OH)2 (s). Because Na+ and NO3- are always ions, they don't participate in the reaction.

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