Balancing equations
 

Hi, I am a student taking Chemistry at GCSE standard, and I have some problems with these equations for hw:

The hw states :
Balance these equations:

a) NH3 + O2 + H2O --> HNO3

b) PB(NO3)2 --> PBO2 + NO2 + O2

c) AL + HCL --> ALCL3 + H2

d) C2H5OH + O2 --> CO2 +H20

e) NA2CO3 + HCL --> NACL + H20 + CO2

I wonder if you could give me some help here please. Some pointers would be appreciated.

You can find the solution in the chemistry books. This is the basic chemistry. Lots of book written about balancing equation.

Lol, Mad_Chemist, You confused me a bit, I viewed that same response on webqc and then again here a minute later.

You can balance these equations online: http://www.webqc.org/balance.php