Respuesta :

Answer:

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  [tex]\frac12[/tex] mole of O₂.

1.26 mole of H₂O reacts then it produces  [tex](\frac12\times 1.26)[/tex] mole of O₂.

                                                                    =0.63 mole

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

The moles of oxygen produced by the decomposition of the 1.26 moles of water has been 0.63 mol.

The decomposition of water molecules will result in the liberation of hydrogen and oxygen.

The balanced chemical equation of the reaction has been:

[tex]\rm 2\;H_2O\;\rightarrow\;H_2\;+\;O_2[/tex]

From the balanced chemical equation, 2 moles of water will give 1 mole of oxygen.

Thus, the oxygen produced by 1.26 moles water has been:

2 moles water =  1 moles oxygen

1.26 moles water = [tex]\rm \dfrac{1}{2}\;\times\;1.26[/tex] moles oxygen

1.26 moles water = 0.63 moles oxygen.

The moles of oxygen produced by the decomposition of the 1.26 moles of water have been 0.63 mol.

For more information about the moles produced, refer to the link:

https://brainly.com/question/10606802