4.5 Stoichiometry Quiz

The reactant that is consumed first in a chemical reaction is called the ....

• limiting reactant

• excess reactant

• catalyst

• ionic reactant

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NGSS.HS-PS1-7

The reactant that determines the amount of product is the ......

• limiting reactant

• excess reactant

• catalyst

• molecular reactant

If 1 mole of H₂ is reacted with 2 moles of O₂, which reactant would be the limiting reactant?

2H₂ + O₂ → 2H₂O

• H₂

• O₂

• H₂O

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NGSS.HS-PS1-7

If 10 moles of H₂ is reacted with 1 mole of O₂, which reactant would be the limiting reactant?

2H₂ + O₂ → 2H₂O

• H₂

• O₂

• H₂O

Tags

NGSS.HS-PS1-7

If 2 moles of CH₄ is reacted with 1 mole of O₂, which would be the excess reactant?

CH₄ + O₂ → CO₂ + 2H₂O

• CH₄

• O₂

• CO₂

• H₂O

In a limiting problem, we must first convert grams to ....

• liters

• molecules

• moles

• ounces

Tags

NGSS.HS-PS1-7