Thursday
April 17, 2014

Homework Help: chem

Posted by Abby on Monday, March 5, 2007 at 7:47pm.

I have to balance an equation and I had to make the equation from an experiment we did.

So far, my equation looks like this and I know what I have is correct:

Cu(NO3)2+H20+NaOH----->Cu(OH)2

I think I probably need an N or a Na on the right side. What do you think?

You don't need the water (at least you don't need it to balance the equation), Cu(OH)2 is correct. You need NaNO3 on the right. If you want to show the water, without worrying about making everything balance with it in place, make Cu(NO3)2(aq) + NaOH(aq) ==> Cu(OH)2(s) + NaNO3(aq)
That shows the water is present (from the aq part without having to balance it. AND it shows the Cu(OH)2 is a ppt in the aq solution. The equation I wrote above is not balanced yet. I think it needs a 2NaNO3.

Thanks, that all makes sense. Just one thing: How do you know I need NaNO3 on the right?

Cu(NO3)2 + NaOH ==>
This a double replacement reaction (double exchange reaction). If the Cu goes with the OH, then the Na goes with the NO3^-. You simply change the + ions with the - ions.

Oh, duh, thanks!

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

chemistry(balance equation) - hi!i am a f4 student in hk.i have know the basic ...
Chemistry - hi I'm having a serious problem with balancing chemical equations , ...
Chemistry - hi I'm having a serious problem with balancing chemical equations , ...
Chemistry - Help needed for writing up a balance chemical equation for an acid/...
Algebra - Solve each literal equations for the indicated variable D = C - s/n ( ...
Chemistry - I am having a bit of difficulty getting the net equation and the net...
solution of an equation - can someone please give me an example of a solution of...
Science - I am learning how to balance a chemical equation but I don't ...
Chemistry - For each reaction, complete and balance the equation and give the ...
8th grade math - how do you make an equation that is parallel to another ...

Search
Members