WorksheetsLimiting & Excess Reactants Quizizz
Total questions: 10
Worksheet time: 24mins
When 12 moles of O2 reacts with 1.2 moles of C10H8 what is the limiting reactant? C10H8 + 12 O2 --> 10 CO2 + 4 H2O
Oxygen
What is the limiting reactant if 16 moles of NH3 and 30.0 moles of NO are combined?
4NH3 + 6NO --> 5N2 + 6H2O
NH3
NO
N2
water
CH4 + 2H2O --> CO2 + 4H2
What is the limiting reactant when 21g CH4 and 15g H2O are combined? (CH4 = 16.043 g/mol; H2O = 18.015 g/mol)
CH4
H2O
CO2
H2
Use the equation 2 Al + 3 Cl2 ---> 2 AlCl3. If 2 moles of aluminum and 2 moles of chlorine are combined, identify the limiting reactant.
AlCl3
Cl2
Al
P4 + 3O2 --> P4O6
What is the limiting reactant when 5 moles of P4 and 18 moles of O2 are combined?
P4
O2
P4O6
none of the above
Fe + S --> FeS
If 7.62g Fe and 8.67g S are combined, what is the limiting reactant? (Fe = 55.845 g/mol; S = 32.066 g/mol)
Fe
S
FeS
none
Make sure the reaction is balanced
Write an unbalanced equation
6:4 (or 3:2 when reduced)
4:6 (or 2:3 when reduced)
This is what you call a reactant that you have plenty of. The one that DOES NOT run out.
Limiting Reactant
Excess Reactant
Highly Reactant
Super Reactant
A limiting reactant is a reactant that.....
runs out during a chemical reaction
causes a reaction to stop
determines the amount of products that can be made
all of these
