Balancing equations

[Violet]

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.

[Borek]

http://www.chembuddy.com/?left=balancin ... &right=toc

[elmyhalily13]

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

[Lou1024]

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

[www.webqc.org]

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