[puhzl]

What are the precipitates, color changes, gas given off... formed from the following chemical reactions? Please help, and fast.?
I need to know what the following chemicals precipitate or any reaction that occurs between:

Pb(+2) and HCl
Pb(+2) and H2SO4
Pb(+2) and NaOH
Pb(+2) and NH4OH

then replace PB(+2) in those equations with the following:

Hg(+2)
Ag
Bi(+3)
Cu(+2)
Cd(+2)
Ni(+2)
Co(+2)
Fe(+3)
Al(+3)
Mn(+2)
Cr(+3)

Any and all that you can do would help a ton. Also, if you know of a website that tells me the reactions, precipitates, color changes, etc please post.

Thanks a ton.

[Rachel.F]

I don't know what are the color changes 

I think you can write the other equations alone

[Borek]

2H⁺ is not evolving gas. Neither Na⁺ nor NH₄⁺.

[Rachel.F]

2H⁺ is not evolving gas. Neither Na⁺ nor NH₄⁺.

2H⁺ is not evolving gas? why?

i think you're right about Na⁺ and NH₄⁺ (sorry about my mistake) but i don't understand why you consider also 2H+

[Borek]

2H⁺ is not evolving gas? why?

Why do you think it is?

[Rachel.F]

2H⁺ is not evolving gas? why?

Why do you think it is?

Because H+ is a gas

[Borek]

H+ is a gas

No, it is not. Hydrogen is a gas. H⁺ is an ion present in the solution.

[Rachel.F]

H+ is a gas

No, it is not. Hydrogen is a gas. H⁺ is an ion present in the solution.

Humm ok