What was the problem with Rutherford's model? a. It described a nucleus. c. It could not explain the chemical properties of elem
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1.05 moles of oxygen gas are consumed in the reaction when 2.10 mol of magnesium burns.
<h3>What are moles?</h3>A mole is defined as of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.
We are given:
Moles of magnesium = 2.10 mol
For the given chemical reaction:
2Mg + O₂ → 2MgO.
By Stoichiometry of the reaction:
2 moles of magnesium react with 1 mole of oxygen gas.
So, 2.10 moles of magnesium will react with = X2.10 =1.05 moles
Hence, 1.05 moles of oxygen gas are consumed in the reaction.
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