How many moles of O2 are produced when 1.26 moles of H2o is reacted

Therefore when 1.26 moles of H₂O is reacted  0.63 mole of O₂ are produced.

Explanation:

The required reaction is

H₂O → O₂+H₂

The reaction is not balance reaction. First we have to balance the reaction.

2H₂O → O₂+2H₂

From the above reaction we conclude that,

2 mole of H₂O  produces 1 mole of O₂ and 2 moles of H₂.

∴When 2 mole of H₂O reacts then it produces 1 mole of O₂

 1 mole of H₂O reacts then it produces   mole of O₂.

1.26 mole of H₂O reacts then it produces   mole of O₂.

                                                                    =0.63 mole

Therefore when 1.26 moles of H₂O is reacted  0.63 mole of O₂ are produced.

a electronegativity decreases beacuse the size of nucleus is bigger.