H is the atomic symbol for hydrogen,
the 2 subscript means it is diatomic.
This chemical equation is:2 H2 + O2 = 2 H2O
2K + 2H2O --> 2KOH + H2 The balanced equation shows that there is a 2 in front of water.
Zn+ H2O ---> ZnO + H2 Zn+ H2O ---> ZnO + H2
Any of the diatomic molecules like H2 gas, O2 gas, N2 gas, etc.
Hydrogen peroxide.
H2 and O2.
This simple equation is: 2H2 + O2 = 2H2O
No. It would have to be H2O2 - H2 = O2 in order to be balanced.
hydrogen peroxide
Balanced equation first. 2H2 + O2 >> 2H2O 1.42 mol H2 ( 1mol O2/2mol H2 ) = 0.71mol O2 to react with H2
This chemical equation is:2 H2 + O2 = 2 H2O
the balanced equation is Na2S2O3 plus H2O2 yields 2NaOH plus H2S2O3 plus O2.
In order to have a balanced equation, adding the reactant H2 And O2 (H2+O2) have to come out equal on the product side and the reactant side. This would look like H2+O2 = H2O2
2K + 2H2O --> 2KOH + H2 The balanced equation shows that there is a 2 in front of water.
The chemical reaction between hydrogen and oxygen produces water.
Zn+ H2O ---> ZnO + H2 Zn+ H2O ---> ZnO + H2
This equation is 2 H2O (liquid) = 2 H2 (gas) + O2 (gas)There must be 4 atoms / 2 diatomic molecules of hydrogen on each side to yield O2This is the electrolysis of water.