Complete and balance chemical equationions?

Question

In chemistry, we are give a word equation (for example, lead(ii)oxide + water), and we then have to complete it and balance it in a chemical equation. How do I complete it? We also have to indicate the state of each reactant and product, which I can do. Here are some of the problems (but I really just want to know how to do it):

Aluminum + ferric chloride solution
Sodium sulfide solution + barium chloride solution
Carbon dioxide gas + sodium hydroxide solution
Magnesium nitric acid

I think I know how to start it (for example, with lead (ii)oxide + water, it becomes PbO+H2O-> XXX (I don't know what the XXX would be)), but I cannot find what type of reaction occures, and what the final product is.

Answer 1

Let me tell you that there is no easy way to tell what type of reaction would occur. You have to accumulate knowledge of chemistry before you may tell whether certain reaction would occur or not.

lead(ii)oxide + water
PbO + H2O ==> Pb(OH)2

Aluminum + ferric chloride solution
Al + FeCl3 ==> Fe + AlCl3

Sodium sulfide solution + barium chloride solution
Na2S + BaCl2 ==> BaS(s)↓+ 2NaCl

Carbon dioxide gas + sodium hydroxide solution
NaOH + CO2 ==> NaHCO3

Magnesium nitric acid
??