I am having trouble balancing the equation for the following. also which reaction are they.

- An aqueous solution of lead(II) nitrate is mixed with aqueous sodium phosphate to produce solid lead(II) phosphate and aqueous sodium nitrate.

- Gallium metal heated in oxygen gas forms solid gallium(III) oxide.


:o thank you

If you're having trouble balancing them, you should at least write them down. You can't balance the equation until you know how many atoms are in the formula.

Lead(II) nitrate = Pb(NO_3)_2

Sodium Phosphate = Na_3PO_4

Sodium Nitrate = NaNO_3

Gallium Metal = Ga

Gallium(III) oxide = Ga_2O_3

Oxyten = O_2

You can find all of this out using Google.

Pb(NO_3)_2 + Na_3PO_4 = Pb3(PO_4)_2 + NaNO_3

Ga + O_2 = Ga_2O_3

Now you just have to balance them. It's pretty trivial. The previous one isn't much more difficult.

As for what kind of reaction they are? What type of reaction do you think they are? What are your choices? The first one is a "metathetical" reaction, but your teacher probably taught you another name for that. The second one involves a change in the oxidation state of oxygen and gallium.

Do you know what is the reaction they are producing..

Thank you so very much

Do you know what is the reaction they are producing?


I'm afraid I don't understand your question

Well I am learning about single replacement - double replacement, combination etc.

I can't get my hand around the book to see if it's a double, single, combination, decomposition etc.

Do you know the reaction of both?

This appears to be a double replacement or a double decomposition (I don't remember if there is a difference. You can teach me if there is.)

3Pb(NO_3)_2 + 2Na_3(PO_4) = Pb3(PO_4)_2 + 6Na(NO_3)

Double Replacement Reactions (http://web.fccj.org/~smilczan/Two5/DR.html)

I'd call this a combination reaction:

2Ga + \frac 32 O_2 = Ga_2O_3

Double replacement or a double decomposition

There is really no difference.


Wow.. thank you very much!
You have cleared so much for me.
I agree with your answer.