[browneyedbella]

Write a balanced net ionic equation for the reaction between:

1. aluminum metal and an aqueous solution of copper (II) chloride.

Al^3- + CuCl₂ (aq) NR

2. Aqueous solutions of sulfurous acid and lithium hydroxide.

H₂ (aq) + OH^-  H₂O (l) + H (g)

3. Aqueous Solutions of lead nitrate and potassium bromide.

Pb²⁺ (aq) + 2Br^-  PbBr₂


Does that look right? As you can tell...net ionic equations aren't really my thing, but I'm trying!

[Borek]

1. aluminum metal and an aqueous solution of copper (II) chloride.

Al^3- + CuCl₂ (aq) NR

OK

2. Aqueous solutions of sulfurous acid and lithium hydroxide.

H₂ (aq) + OH^-  H₂O (l) + H (g)

No. What does sulfuric acid dissociate to?

3. Aqueous Solutions of lead nitrate and potassium bromide.

Pb²⁺ (aq) + 2Br^-  PbBr₂

Not bad, although you should add information about state of matter to Br^- and PbBr₂.

[browneyedbella]

No. What does sulfuric acid dissociate to?

are sulfuric and sulfurous the same thing?

Not bad, although you should add information about state of matter to Br^- and PbBr₂.

So....
Pb²⁺ (aq) + 2Br^- (l)  PbBr₂ (g)

I'm kind of unsure of the states, but I think that's right. Maybe PbBr₂ is a (l) tho.

[AWK]

1. aluminum metal and an aqueous solution of copper (II) chloride.

Al3- + CuCl2 (aq)  NR

2. Aqueous solutions of sulfurous acid and lithium hydroxide.

H2 (aq) + OH-   H2O (l) + H (g)

3. Aqueous Solutions of lead nitrate and potassium bromide.

1.
Al metal is Al not Al^3-. Al reacts with copper(II) chloride
2.
wrong. What  ion all acids loose in solution? What does mean the term: neutralization?
3.
Pb2+ (aq) + 2Br-   PbBr2[/quote]PbBr₂ - should  be write down as Pb²⁺ + 2Br^- or PbBr₂(aq)
Solubility of PbBr₂ is slighty lower then PbCl₂ an is about 10 g in liter of H₂O at room temperature. The if you produce more - write down PbBr₂(s)

[Borek]

No. What does sulfuric acid dissociate to?

are sulfuric and sulfurous the same thing?

Sorry, my bad, I concentrated on the equations ignoring quoted descriptions. See AWK remarks.

[browneyedbella]

2. Aqueous solutions of sulfurous acid and lithium hydroxide.

H₂ (aq) + OH^-  H₂O (l) + H (g)

so would this be:

H₂SO₃ (aq) + LiOH  LiSO₃ + H₂O

[browneyedbella]

Write a balanced net ionic equation for the reaction between:

1. aluminum metal and an aqueous solution of copper (II) chloride.

Al^3- + CuCl₂ (aq) NR

how about this???


Al^2- + CuCl₂ (aq) --> AlCl (g)

[nj_bartel]

1) If you have an aqueous solution of something, that compound exists in ionic form.
2) Your net charge has to be the same on both sides.
3) If one of your substances is listed as x "powder," x "metal," etc. then it is not an ion - just the element.

[AWK]

Al^3- + CuCl₂ (aq)  NR

Al^3- rather does not exist
metallic Al reacts with CuCl₂

H2SO3 (aq) + LiOH   LiSO3 + H2O

Li₂SO₃ is formed
net ionic reaction is:
H⁺ + OH^- = H₂O
or
H₃O⁺ + OH^- = 2H₂O

Pb²⁺ (aq) + 2Br^-  = PbBr₂

better
Pb²⁺(aq) + 2Br^-(aq) =  PbBr2(s)