The number of moles of mgo produced when 0.20 mole of o2 reacts completely is 2mg + o2 → 2mgo

The reaction of 0.20 moles of oxygen on complete utilization produces 0.40 moles of MgO.

From the reaction,

1 mole of oxygen produced 2 moles of MgO.

So, 0.20 moles of oxygen produces:

Moles of MgO produced = 0.20 2

Moles of MgO produced = 0.40 moles.

The reaction of 0.20 moles of oxygen on complete utilization produces 0.40 moles of MgO.

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sio2 (quartz)

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