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Worksheetslong quiz limiting reactant
Total questions: 15
Worksheet time: 48mins
Name
Class
Date
1.
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
2.
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
3.
What is the limiting reactant if 10 moles of NH3 react with 30.0 moles of NO?
4NH3+6NO --> 5N2 + 6H2O
4NH3+6NO --> 5N2 + 6H2O
a)
NH3
b)
NO
c)
N2
d)
water
4.
When 12 moles of O2 reacts with 1.1 mole of C10H8 what is the limiting reactant? C10H8 + 12 O2 --> 10 CO2 + 4 H2O
a)
Oxygen
b)
C10H8
c)
Water
d)
Carbon Dioxide
5.
Theoretical yield = 73g
Actual yield = 62g
Calculate the percent yield.
Actual yield = 62g
Calculate the percent yield.
a)
1.16%
b)
116%
c)
85%
d)
76%
6.
P4 + 3O2 --> P4O6
What is the limiting reactant is 12 moles of P4 react with 15 moles of O2?
What is the limiting reactant is 12 moles of P4 react with 15 moles of O2?
a)
P4
b)
O2
c)
P4O6
d)
none of the above
7.
4NH3 + 5O2 --> 4NO + 6H2O
How many grams of NO are formed if 6.30g of ammonia react with 1.80g of oxygen?
How many grams of NO are formed if 6.30g of ammonia react with 1.80g of oxygen?
a)
0.37g
b)
0.045g
c)
1.35g
d)
11.1g
8.
How many grams of FeS are formed from 7.62g of Fe reacted with excess S?
a)
3.82g
b)
7.62g
c)
12.2g
d)
11.4g
9.
This is what you call a reactant that you have enough of. The one that DOES NOT run out.
a)
Limiting Reactant
b)
Excess Reactant
c)
Highly Reactant
d)
Super Reactant
10.
A limiting reactant is a reactant that.....
a)
runs out during a chemical reaction
b)
causes a reaction to stop
c)
determines the amount of products that can be made
d)
all of these
11.
Using the following equation:
Fe2O3(s) + 3H2(g) → 2Fe(s) + 3H2O(l)
How many moles of iron can be made from 6 moles H2 and excess Fe2O3?
a)
4 moles Fe
b)
6 moles Fe
c)
9 moles Fe
d)
2 moles Fe
12.
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
13.
P4 + 3O2 --> P4O6
What is the limiting reactant is 12 moles of P4 react with 15 moles of O2?
What is the limiting reactant is 12 moles of P4 react with 15 moles of O2?
a)
P4
b)
O2
c)
P4O6
d)
none of the above
14.
P4 + 3O2 --> P4O6
How many moles of P4O6 can be made if 3 moles of P4 react with 6 moles of O2?
a)
1 mole
b)
2 moles
c)
4 moles
d)
0 moles
15.
How much water can be made if 8 moles of NH3 react with 6 moles of NO?
4NH3+6NO --> 5N2 + 6H2O
a)
5 moles
b)
6 moles
c)
12 moles
d)
18 moles
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