What is the balanced chemical reaction for the decomposition of H2O?

Answer 1

Equations for combustion will change with the type of fuel used. For example, the complete combustion of pentane is (C5)(H12) + 3(O2) --> 5(CO2) + 6(H2O). The complete combustion of ethanol is (C2)(H5)(OH) + 3(O2) --> 2(CO2) + 3(H2O).

Answer 2

Pure, elementals Hydrogen is notated as H2.

Hydrogen is one of the seven (Hydrogen, Nitrogen, Oxygen, Chlorine, Bromine, Iodine, Fluorine) diatomic elements. These elements occur as a 2 atomic molecule in nature.

Answer 3

Not sure exactly what you're asking, but hopefully this helps:

Hydrogen is a diatomic molecule so in nature exists as H2. That would be the formula for hydrogen.

If electricity is channeled through water, a decomposition reaction, resulting in the production of oxygen and hydrogen, will occur. This is the balanced equation for that reaction:

2H2O --> 2H2 + O2

(oxygen is also a diatomic molecule, so it also has to be written as O2 instead of just O)

Answer 4

2H2 + O2 => 2H2O + heat

Since the question was on combustion of hydrogen, it would have been better to include the amount of heat released.

Answer 5

The combustion reaction for hydrogen is 2H2 + O2 --> 2H2O

Answer 6

2H2 + O2 --> 2H2O

Answer 7

2h2 + o2 = 2h2o

Answer 8

C3H8 + 5 O2 -------> 3 CO2 + 4H2O

Answer 9

2h2o --> 2h2 + o2