2H2 + O2 ---> 2H20 is balanced when total numbers of atoms of EACH element seperately are equal on both sides ('Reactant' and 'Product' side):
Left (2x H2=) 4 H atoms and (1x2 O=) 2 O atoms
Right (2x H2=) 4 H's and (2x1 O=) 2 O's
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No, the chemical equation 2H2 + O2 → 2H2O is not balanced. The equation should be balanced as follows: 2H2 + O2 → 2H2O.
The balanced equation is: 4H₂ + 4NO → 4H₂O + 2N₂.
The balanced chemical equation for the reaction is: 2H2(g) + O2(g) → 2H2O(g). This equation indicates that when 2 moles of hydrogen gas react with 1 mole of oxygen gas, they produce 2 moles of water vapor.
Water (H2O) is made of 2 molecules of hydrogen and one oxygen. When you separate water into a gaseous state by electrolysing the water, you have separated the oxygen and hydrogen molecules. If you were to bubble that gas (Brown's gas) through water, the water absorbs the extra 2 molecules of hydrogen and one molecule of oxygen. 2H2O + 2H2 + O2 = 2[H3O]+ + 2[OH]-
The balanced equation for this reaction is: 4 H2 + 4 NO -> 4 H2O + 2 N2.
One molecule of Oxygen Gas (O2) combines with two molecules of Hydrogen Gas (2H2) to form two molecules of water 2H2O. O2+2H2=> 2H2O There are the same numbers of H's and O's either side of the = meaning the equation is balanced, in respect of the fact that Oxygen and Hydrogen Gas have diatomic molecules (2 atoms stick together)