ENTRACNE TICKET: Limiting Reactants

What is the definition of a limiting reactant in a chemical reaction?

• The reactant that is present in excess and remains after the reaction.

• The reactant that determines the amount of product formed.

• The reactant that speeds up the reaction.

• The reactant that is not consumed in the reaction.

• None, they are in perfect stoichiometric ratio.

• 10 moles

• 20 moles

• 30 moles

• 40 moles

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NGSS.HS-PS1-7

In a chemical reaction, why is it important to identify the limiting reactant?

• To determine the maximum amount of product that can be formed.

• To increase the reaction rate.

• To reduce the amount of waste produced.

• To ensure all reactants are used up completely.

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NGSS.HS-PS1-6

NGSS.HS-PS1-7

• None, they are in perfect stoichiometric ratio.

What is the first step in determining the limiting reactant in a chemical reaction?

• Calculate the molar masses of the reactants.

• Write a balanced chemical equation.

• Measure the temperature of the reaction.

• Determine the concentration of the reactants.

• None, they are in perfect stoichiometric ratio.

Tags

NGSS.HS-PS1-7

Explain why the concept of limiting reactants is crucial in industrial chemical processes.

• It helps in maximizing the yield of products.

• It ensures the reaction occurs at a faster rate.

• It reduces the cost of raw materials.

• It prevents the formation of by-products.

• None, they are in perfect stoichiometric ratio.

• 5 moles

• 10 moles

• 15 moles

• 20 moles