Asked by Katie

Write the balanced chemical equation for each of these reactions. Include phases. When aqueous sodium hydroxide is added to a solution containing lead(II) nitrate, a solid precipitate forms. However, when additional aqueous hydroxide is added the precipitate redissolves forming a soluble [Pb(OH)4]2–(aq) complex ion.
Answered by DrBob222
2NaOH(aq) + Pb(NO3)2(aq) ==> Pb(OH)2(s) + 2NaNO3(aq)

Pb(OH)2(s) + 2NaOH(aq) ==> Na2Pb(OH)4(aq)
Answered by Sarah
I had the exact same question, but the when I tried the second equation, it was wrong.
Answered by Massie
Same as Sarah
Answered by Anonymous
second equation is

Pb(OH)2(s)+2OH^-(aq)<---> [Pb(OH)4]^2-(aq)
Answered by Anonymous
You forgot the 2Na+(aq) ions as products of the second reaction.
Answered by Anya
You have to put " Pb(OH)4(aq) " in square brackets... [Pb(OH)4]2–(aq)
Answered by Yugi
The answer for the second equation input is

Pb(OH)2 (s) + 2 NaOH^- (aq) --> [Pb(OH)4]^2- (aq) + 2 Na^+ (aq)

This part of the problem annoyed the hell out of me before I actually got it.
Answered by Andrew
Pb(OH)2 (s) + 2NaOH (aq) <--> [Pb(OH)4]^2- + 2Na^+ (aq)

Don't include the "-" in NaOH
Answered by Juan Imhoff
Ole ole Pumas!
The answer in right
Answered by RONNIE
Na2Pb(OH)H(aq)
Answered by Tamerra
2NaOH(aq)+Pb(NO3)2(aq)--->Pb(OH)2(s)+2NaNO3(aq)


Pb(OH)2(s)+2OH^-(aq)--->[Pb(OH)4]^2-(aq)

just saw the answer on sapling.
Answered by Violet
I can confirm Tamerra's answer.
2NaOH(aq)+Pb(NO3)2(aq)--->Pb(OH)2(s)+2NaNO3(aq)

Pb(OH)2(s)+2OH^-(aq)--->[Pb(OH)4]^2-(aq)

is the correct answer on Sapling.
Answered by Anonymous
Not correct on sapling
Answered by Dev
Ok, here is the final answer that worked for mines on Sapling
1: 2NaOH(aq) + Pb(NO3)2(aq) --> Pb(OH)2(s) + 2NaNO3(aq)
2: Pb(OH)2(s) + 2OH^-(aq) --> [Pb(OH)4]^2-(aq)
Answered by Anonymous
2NaOH(aq) + Pb(NO3)2(aq)-----> Pb(OH)2(s) + 2NaNO3(aq)
**** for Pb(NO3)2 the 2 does not mean to square it you have to put it in the bottom corner as well as Pb(OH)2 the 2 does not mean to square it has to be put in the bottom corner

Pb(OH)2(s) +2OH-(aq)----->[Pb(OH)4]2-(aq)

****for Pb(OH)2 the 2 does not mean to square it you have to put it in the bottom corner
****in [Pb(OH)4]2- the 2- IS SQUARED and the 4 is in the bottom corner
There are no AI answers yet. The ability to request AI answers is coming soon!