Will the following reactions mixed together cause a precipitate reaction, released gas reaction, or no reaction.

Question

Ba(NO3)2 mixed with NaCl
Ba(NO3)2 mixed with HCl
Ba(NO3)2 mixed with Na2CO3
Ba(NO3)2 mixed withNa3SO4

also Ba(NO3)2 is soluble and a solid and HCl is a gas.

Is there some sort of "law" that I should know when soluble solids will do with soluble gases/solids?

Thank you!

Answer 1

Ba(NO3)2 mixed with NaCl NO
Ba(NO3)2 mixed with HCl NO
Ba(NO3)2 mixed with Na2CO3 YES
Ba(NO3)2 mixed with Na3SO4YES but you have a typo in Na2SO4

also Ba(NO3)2 is soluble and a solid and HCl is a gas.
I don't know what you're asking here. HCl is a gas but usually you use an aqueous solution of HCl. Yes, Ba(NO3)2 is a solid.

I'm a little confused about what LAWS you might need to know.
Generally you need to know the following:
Aqueous solution will react if one of the following occurs.
1. An insoluble precipitate is formed. The solubility rules (you should know them) will tell you that. For all of the above the solubility rules will answer them.
2. A gas is formed. The usual gases are CO2, H2, N2, O2, F2, Cl2, SO2, SO3, NO2.
3. A slightly soluble material is formed. The USUAL material formed in freshman chemistry is water.
I have written the equations (with phases) for the reactions at the beginning of the post that react. The others are no reaction.
Ba(NO3)2(aq) + Na2CO3(aq) ==> BaCO3(s) + 2NaNO3(aq)

Ba(NO3)2(aq) + Na2SO4(aq) ==> BaSO4(s) + 2NaNO3(aq)

Answer 2

What kind of reaction does it cause though?precipitate reaction, released gas reaction, or no reaction.

you answered yes, no, yes but didn't explain what reaction it is.

Answer 3

If you know the solubility rules (#1) in my explanation, then you know BaSO4 is a solid (I show solid by BaSO4 in the equation I wrote belowB) and you know BaCO3 is a solid (which I show solid in my equation below). So the first two don't react, the next two react to produce a solid in each; i.e., BaCO3 in #3 and BaSO4 in #4. Therefore, #3 and #4 are ppt reactions.