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MODULE 8 LIMITING REAGENT

Quiz by Apple Olita

Grade 11
General Chemistry 1
Philippines Curriculum: SHS Specialized Subjects (MELC)

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10 questions
Show answers
  • Q1

    When you use a balanced chemical equation to calculate the amount of a product on paper it is referred to as the: 

    percent yield

    experimental value

    true amount

    theoretical value

    20s
    STEM_GC11MRIg-h-40
  • Q2

    If 15 grams of copper (II) chloride react with 20 grams of sodium nitrate, What is the limiting reagent? 

    NaNO3

    CuCl2

    NaCl

    Cu(NO3)2

    60s
    STEM_GC11MRIg-h-40
  • Q3

    Theoretical yield = 73g

    Actual yield = 62g

    Calculate the percent yield.

    1.16%

    116%

    76%

    85%

    60s
    STEM_GC11MRIg-h-40
  • Q4

    What is the measured amount of a product obtained from a chemical reaction?

    mole ratio

    actual yield

    percentage yield

    theoretical yield

    20s
    STEM_GC11MRIg-h-40
  • Q5

    What is the limiting reactant?

    slows the reaction down

    is used up first

    controls the speed of the reaction

    is the reactant that is left over

    20s
    STEM_GC11MRIg-h-40
  • Q6

    When does a chemical reaction stop?

    When the limiting reactant is used up

    When the lab is finished

    Chemical reactions never stop

    When the excess reactant is used up

    20s
    STEM_GC11MRIg-h-40
  • Q7

    Identify the limiting reagent when 6.00 g HCl combines with 5.00 g Mg to form MgCl2. (Mg + 2HCl -----> MgCl2   +    H2 )   

    MgCl2

    Mg

    H2

    HCl

    60s
    STEM_GC11MRIg-h-40
  • Q8

     You need 2 pieces of bread, 1 tablespoon of peanut butter and 2 tablespoons of jelly to make a sandwich.  If you have 10 pieces of bread, 4 tablespoons of peanut butter and 20 tablespoons of jelly, what is the limiting reactant?

    peanut butter

    sandwich

    bread

    jelly

    45s
    STEM_GC11MRIg-h-40
  • Q9

    The reactant that is not completely used up in a chemical reaction is called the:

    spectator reagent

    catalyst

    limiting reagent

    excess reagent

    20s
    STEM_GC11MRIg-h-40
  • Q10

    Cl2 + 2 KBr → Br2 + 2 KCl

    How many grams of potassium chloride can be produced from 356 g of Cl2 and 356 g of potassium bromide?

    753 g

    443 g

    376 g

    221 g

    60s
    STEM_GC11MRIg-h-40

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