If 8.0g of magnesium reacts with 30.0g of molten iron(II)oxide according to the following balanced equation, what is the mass of iron produced?
3 Mg + Fe2O3 → 2 Fe+ 3 MgO(s)
What is the limiting reactant?
What is the excess reactant?
What is the theoretical yield of iron?
If 8.6 g of iron was actually produced what is the percent yield?

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explanation:

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a electronegativity decreases beacuse the size of nucleus is bigger.