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Chemistry Unit 6 Review Game

Total questions: 37

Worksheet time: 44mins

Name
Class
Date
1.

Choose all of the physical reactions.

a)

2 H2(g) + O2(g) → 2 H2O(l)

b)

H2O(s) → H2O(l)

c)

I2(s) → I2(g)

d)

KNO3(s) → KNO3(aq)

e)

C6H12O6(s) → C6H12O6(aq)

2.

Choose all of the chemical reactions.

a)

2 H2(g) + O2(g) → 2 H2O(l)

b)

H2O(s) → H2O(l)

c)

I2(s) → I2(g)

d)

KNO3(s) → KNO3(aq)

e)

C6H12O6(s) → C6H12O6(aq)

3.
What does the Law of Conservation of Mass state?
a)
Matter cannot be gained or lost in a chemical reaction.
b)
Matter can only be lost in a chemical reaction.
c)
Matter can only be gained in a chemical reaction.
d)
Matter can be gained and lost in a chemical reaction. 
4.
What is the little number after an element in a chemical equation called.
Example: H2
a)
Coefficient 
b)
Subscript
c)
Atom
d)
Equation
5.
Which side of a chemical equation is the product side?
a)
Left (before the yields sign)
b)
Right (after the yields sign)
6.

In a reaction A + B ----> C, reactant A has 5g and product C has 9g. How many grams does reactant B have?

a)

4g

b)

5g

c)

9g

d)

14g

7.

PCl5 + ___ H2O → ___ HCl + H3PO4

a)

4, 5

b)

1, 6

c)

3, 8

d)

2,2

8.
Is this equation balanced?
a)
yes
b)
no
c)
Not enough information
d)
Left side is balanced
9.

Which equation is balanced?

a)

PbO2 + 2H2

b)

SO2 + H20 --> H2SO4

c)

2Na + 2H2O --> 2NaOH + H2

10.
3Ca + 2AlCl3 --> 3CaCl2 + 2Al
a)

Synthesis (Combination)

b)

Decomposition

c)

Single diplacement

d)

Double displacement

11.
3KOH + H3PO4 --> K3PO4 + 3H2O
a)
Synthesis 
b)
Decomposition
c)
Single displacement
d)
Double displacement
12.
2Pb(NO3)2 --> 2PbO + 4NO2 + O2
a)
Synthesis 
b)
Decomposition
c)
Single displacement
d)
Combustion
13.

What reaction has the following general formula: CxHy + O2 >CO2 + H2OC_xH_y\ +\ O_2\ ->CO_{2\ }+\ H_2O  

a)

Combination

b)

Decomposition

c)

Single Exchange

d)

Double Exchange

e)

Combustion

14.
One element replaces another in a compound.
a)

Combination

b)

Combustion

c)

Single Exchange

d)

Double Exchange

15.

What is the molar mass of sodium? (round to 0.1s)

a)

23.0

b)
23
c)
45.98
d)
3
16.
What is the molar mass of CO2?
a)

12.0 g/mol

b)

16.0 g/mol

c)

32.0 g/mol

d)

44.0 g/mol

17.

What is the molar mass of B2(CO3)3? Round to 0.1s

a)

81.6 g/mol

b)

94.8 g/mol

c)

38.8 g/mol

d)

201.6 g/mol

18.
How many particles are in a mole?
a)

6.023 x 1022

b)

6022 million

c)

6022 moles

d)

6.022 x 1023

19.
What is the mass in grams of 5.90 mol C8H18?
a)

0.0512 g

b)
19.4 g
c)
673 g
d)
389 g
20.
How many water molecules are in 5.2 moles of water?
a)
6.02 x 1023
b)
5.2
c)
3.1304 x 1024
d)
8.638 x 10-24
21.
Determine the amount of moles in 4.50 x 1023 atoms of fluorine.
a)
9.03 x 1046 moles
b)
0.757 moles
c)
4.73 moles
d)
0.0131 moles
22.

What is the mass of 5.0x1022 molecules of CH3OH?

a)

0.08 mol

b)

32.0 g/mol

c)

2.6 g

d)

12.3 g

23.

What is the Molar Mass of K2S? (round to 0.1s place)

a)

110.3 g/mol

b)

110 g/mol

c)

110.0 g/mol

d)

111.0 g/mol

24.
In the equation 2 Al2O3 --> 4 Al + 3 O2, what is the mole ratio of aluminum to oxygen?
a)
10:6 
b)
3:4
c)
4:3
d)
2:3
25.
What can be determined from a balanced chemical equation?
a)
Mole ratio of any two substances in the reaction
b)
Energy released in the reaction.
c)
Electron configuration of all elements in the reaction. 
d)
Mechanism involved in the reaction. 
26.

N2 + 3H2 → 2NH3

What is the mole ratio between Nitrogen and Ammonia in the above reaction?

a)

1 mol NH3 / 2 mol N2

b)

2 mol NH3 / 1 mol N2

c)

2 mol N2 / 3 mol NH3

d)

1 mol N2 / 3 mol NH3

27.

Balance this equation.
_SnO2 +_H2-->_Sn +_H2O

a)
1,1,2,1
b)
1,2,1,1
c)
1,2,1,2
d)
1,2,2,1
28.

2 C2H6 + 7 O2 → 4 CO2 + 6 H2O

Ethane (C2H6) combusts in the above reaction. What is the mole ratio of ethane to oxygen gas?

a)
b)
c)
d)
29.

N2 + 3H2 --> 2NH3

How many moles of NH3 is produced from 6 moles of N2?

a)

12 moles

b)

3 moles

c)

2 moles

d)

1.5 moles

30.
H2+Cl2-->2HCl
What is the total number of moles of HCl produced when 3 moles of H2 is completely consumed?
a)
5
b)
2
c)
3
d)
6
31.
2 NaClO3 (s) --> 2NaCl (s) +3 O2 (g)  
12.00 moles of NaClO3 will produce how many grams of O2?
a)
256 g of O2
b)
576 g of O2
c)
288 g O2
32.
B2H6 + 3O2 -->2 HBO2 + 2 H2O
 What mass of O2 will be needed to burn 36.1 g of B2H6?
a)
13.8 g O2
b)
3.86 mol of O2
c)
124 g O2
33.

(Honors) 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

34.

(Honors) 200g of P2O5 reacts with 40.0 g of H2O.

What is the limiting reactant and how many grams of H3PO4 is theoretically collected?

3H2O + P2O5 -> 2H3PO4

a)

P2O5, 240 g

b)

H2O, 40 g

c)

H2O, 120 g

d)

H2O, 145 g

35.

If stoichiometry calculation says that 11.2 grams of product should be collected, but a laboratory experiment produces on 8.5 g of product

a)

%y = 76%

b)

%y = 60%

c)

%y = 132%

d)

%y = 57%

36.

This calculation...

a)

Converts moles of sodium hydroxide to grams of calcium hydroxide

b)

Converts grams of sodium hydroxide to moles of calcium hydroxide

c)

Converts moles of sodium hydroxide to moles of calcium hydroxide

d)

Converts grams of calcium hydroxide to grams of sodium hydroxdie

37.

When this table is filled out, the following choices are INCORRECT. Select all that apply.

a)

A = 28

b)

B = 0.10

c)

A = 30

d)

C = 1.4

e)

C = 1.5