suppose 2.4 g of mg reacts with 10.0 g of o2, to create magnesium oxide. how much magnesium oxide is produced?

3.98 g

Explanation:

Step 1. Write the balanced chemical reaction. In this case, magnesium reacts with oxygen to produce magnesium oxide:

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Step 2. Calculate the number of moles of magnesium:

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Step 3. Calculate the number of moles of oxygen:

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Step 4. Identify the limiting reactant comparing the equivalents. Equivalent of Mg:

Equivalent of oxygen:

Therefore, Mg is the limiting reactant.

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Step 5. According to the stoichiometry of this reaction:

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Step 6. Convert the number of moles of MgO into mass: