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WorksheetsLimiting Reagent Quiz
Total questions: 10
Worksheet time: 29mins
Name
Class
Date
1.
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?
a)
bread
b)
jelly
c)
peanut butter
d)
sandwich
2.
Identify the limiting reagent when 6.00 moles HCl combines with 5.00 moles Mg to form MgCl2.
1 Mg + 2 HCl --> 1 MgCl2 + 1 H2
1 Mg + 2 HCl --> 1 MgCl2 + 1 H2
a)
Mg
b)
H2
c)
MgCl2
d)
HCl
3.
The limiting reactant . . .
a)
slows the reaction down.
b)
is used up first.
c)
is the reactant that is left over.
d)
controls the speed of the reaction.
4.
Use the equation 2 Al + 3 Cl2 ---> 2 AlCl3. If 2 moles of aluminum and 2 moles of chlorine are reacted, identify the limiting reactant.
a)
AlCl3
b)
Cl2
c)
Al
d)
None
5.
When does a chemical reaction stop?
a)
When the lab is finished.
b)
When the excess reactant is used. up
c)
When the limiting reactant is used up.
d)
Chemical reactions never stop.
6.
1 Cheese + 2 Bread --> 1 Grilled cheese
How many grilled cheeses can you make with 26 slices of bread and 14 pieces of cheese?
How many grilled cheeses can you make with 26 slices of bread and 14 pieces of cheese?
a)
14
b)
13
c)
26
d)
7
7.
When 12 moles of O2 reacts with 6 moles of C10H8, what is the limiting reactant?
1 C10H8 + 12 O2 --> 10 CO2 + 4 H2O
1 C10H8 + 12 O2 --> 10 CO2 + 4 H2O
a)
Oxygen
b)
C10H8
c)
Water
d)
Carbon Dioxide
8.
What is the limiting reactant if 10 moles of NH3 react with 30.0 moles of NO?
4 NH3+6 NO --> 5 N2 + 6 H2O
4 NH3+6 NO --> 5 N2 + 6 H2O
a)
NH3
b)
NO
c)
N2
d)
water
9.
1 P4 + 3 O2 --> 1 P4O6
What is the limiting reactant if 12 moles of P4 react with 15 moles of O2?
What is the limiting reactant if 12 moles of P4 react with 15 moles of O2?
a)
P4
b)
O2
c)
P4O6
d)
none of the above
10.
The Formula to make S'mores is:
2C + 1M + G2 → C2MG2. If you have 5 Marshmallows (M), 9 Chocolate Pieces (C), and 9 Graham Cracker Halves (G), how many S'mores can you make?
2C + 1M + G2 → C2MG2. If you have 5 Marshmallows (M), 9 Chocolate Pieces (C), and 9 Graham Cracker Halves (G), how many S'mores can you make?
a)
5
b)
4
c)
8
d)
42
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