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Limiting Reactants. In a perfect world…. We have the perfect amount of out “ingredients” to make our desired product. This is known as being balanced. 2 Na + Cl ₂ 2 NaCl. In the REAL world. Nothing is perfect… One of the reactants (ingredients) limits how much product we can make.

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## Limiting Reactants

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**In a perfect world…**• We have the perfect amount of out “ingredients” to make our desired product. • This is known as being balanced. • 2 Na + Cl₂ 2 NaCl**In the REAL world**• Nothing is perfect… • One of the reactants (ingredients) limits how much product we can make. • Limiting Reactant- the reactant that determines how much product we can make. • 10 buns, 20 patties, 2 slices of cheese, and 40 strips of bacon 1 bacon double cheeseburger**How do I know the limiting reactant?**Step 1: write out balanced equation. Step 2: convert each reactant to mass of product Step 3: the reactant that makes the LEAST amount of product is the limiting reactant.**What mass of Ag₂S is produced from a mixture of 2.0 g Ag**and 2.0 g S ? Step 1: 16 Ag + S₈ 8Ag₂S**How do I find out how much reactant is left/ in excess ?**• Step 1: Convert limiting reactant into mass of non-limiting reactant • Step 2: Subtract amount used from the amount at the beginning.

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