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Stoichiometry Unit Exam #6

Total questions: 20

Worksheet time: 4hrs 40mins

Name
Class
Date
1.

Identify the following chemical reaction:

Pb + FeSO4 → PbSO4 + Fe

a)

Synthesis

b)

Decomposition

c)

Single replacement

d)

Double replacement

e)

Combustion

2.

Identify the following chemical reaction: CH4 + 2 O2 → CO2 + 2 H2O

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

3.

Identify the following chemical reaction:

2 NH3+ 1 H2SO4 → 1 (NH4)2SO4

a)

Synthesis

b)

Decomposition

c)

Single replacement

d)

Double replacement

e)

Combustion

4.

Identify the following chemical reaction:

CaCO3 → CaO + CO2

a)

Synthesis

b)

Decomposition

c)

Single replacement

d)

Double replacement

e)

Combustion

5.

Identify the following chemical reaction:

2 NaBr + 1 Ca(OH)2 → 1 CaBr2 + 2 NaOH

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

6.

Identify the following chemical reaction:

Pb(NO3)2 + 2KI → PbI2 + 2KNO3

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

7.

What is the mole-to-mole ratio between sodium (Na) and hydrogen (H2)?

2 Na + 2 H2O → 2 NaOH + H2

(a)  

8.

What is the mole-to-mole ratio between sodium chloride (NaCl) and oxygen (O2)?

2 NaClO3 → 2 NaCl + 3 O2

(a)  

9.

Given the reaction:

1 (NH4)2CO3 → 2 NH3 + CO2 + H2O


What amount of (NH4)2CO3 is needed to produce 1.0 mole of NH3?

(a)  

10.

Given the reaction:

2 NaOH + 1 H2SO4 → 1 Na2SO4 + 2 H2O


What is the total number of moles of NaOH needed to react with 2 moles of H2SO4?

(a)  

11.

Given the reaction:

2 CO +1 O2 → 2 CO2


What is the number of moles of O2 required to produce 1 mole of CO2?

(a)  

12.

Given the reaction:

2 Al + 3 H2SO4 → 3 H2 + Al2(SO4)3


What is the total number of moles of H2SO4 needed to react with 5.0 moles of Al?

(a)  

13.

Given the reaction:

2 C2H6 + 7 O2 → 4 CO2 + 6 H2O


What is the total number of moles of CO2 produced by the reaction of 5.0 moles of C2H6?

(a)  

14.

Given the reaction:

1 CH4 + 2 O2 → 1 CO2 + 2 H2O


How many moles of O2 are needed for the complete combustion of 3 moles of CH4?

(a)  

15.

Given the following reaction:

CaCl2 → Ca + Cl2


Determine the number of moles of Ca produced when you start with 4 moles of CaCl2.

(a)  

16.

Determine the number of moles of F2 produced when you start with 10 moles of AlF3 in the chemical reaction:


4 AlF3 + 3 O2 → 2 Al2O3 + 6 F2

(a)  

17.

Given the reaction:

C3H8 + 5 O2 → 3 CO2 + 4 H2O


What is the total number of moles of O2 required to produce 9 moles of CO2?

(a)  

18.

Given the reaction:

2 KClO3 → 2 KCl + 3 O2


What is the total number of moles of KCl produced when 1.5 moles of KClO3 is decomposed?

(a)  

19.

Given the reaction:

N2 + 3 H2 → 2 NH3


What is the total number of moles of NH3 produced when 15 moles of H2 reacts?

(a)  

20.

Given the reaction:

6 CO2 + 6 H2O → C6H12O6 + 6 O2


What is the total number of moles of H2O needed to make 1 mole of C6H12O6 ?

(a)