Answer:
1 O₂
Explanation:
In the combustion reaction of hydrogen, oxygen combines with hydrogen to form water as the product of the reaction
Equation of reaction:
2H₂ + O₂ → 2H₂O
From the equation of reaction, it is evident that 2 moles of hydrogen reacts with 1 mole of oxygen to produce 2 moles of water.
Therefore the coefficient of oxygen in the equation is 1.
The correct coefficient for oxygen gas is 1 O₂.
With respect to the combustion reaction of hydrogen, oxygen should be combined with hydrogen to create water just like the product of the reaction
We considered the below Equation of reaction:
2H₂ + O₂ → 2H₂O
Here, 2 moles of hydrogen react with 1 mole of oxygen to generated 2 moles of water.
Therefore the coefficient of oxygen in the equation is 1.
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