Limiting reactant controls the amount of _ ?
Correct answer: B. Products
- A. Reactant
- B. Products
- C. Both A & B
- D. None of these
Explanation
he limiting reactant controls the amount of products formed in a chemical reaction. The limiting reactant is the reactant that is completely consumed first, and it determines the maximum amount of product that can be formed. The other reactants, called excess reactants, are not completely consumed and are left over at the end of the reaction.So the answer is products.Here is an example. Let's say we have the following chemical reaction:2H2+ O2 → 2H2OThis reaction requires 2 moles of hydrogen gas for every 1 mole of oxygen gas. If we start with 1 mole of hydrogen gas and 2 moles of oxygen gas, then the hydrogen gas will be the limiting reactant. This is because the hydrogen gas will be completely consumed first, and only 1 mole of water will be formed. The oxygen gas will be left over in excess
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About Fundamental Concepts of Chemistry
Mole calculations connect mass, number of particles and Avogadro's number, while balanced equations provide the mole ratios used in stoichiometry. Questions cover limiting and excess reactants, theoretical yield and percentage yield, including identifying which reactant is consumed first and comparing the actual product with the maximum possible product.
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