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Foundations of Chemistry Review

Total questions: 101

Worksheet time: 2hrs 3mins

Name
Class
Date
1.
2 NaBr + 1 Ca(OH)2 ----> 1 CaBr2 + 2 NaOH
a)
Synthesis (or combination)
b)
Decomposition
c)
Single displacement
d)
Double displacement
2.
2 NH3+ 1 H2SO4 ----> 1 (NH4)2SO4
a)
Synthesis (or combination)
b)
Decomposition
c)
Single displacement
d)
Double displacement
3.
3 Pb + 2 H3PO4 ----> 3 H2 + 1 Pb3(PO4)2
a)
Synthesis (or combination)
b)
Decomposition
c)
Single displacement
d)
Double displacement
4.
1 Li3N + 3 NH4NO3 ----> 3 LiNO3 + 1 (NH4)3N
a)
Synthesis (or combination)
b)
Decomposition
c)
Single displacement
d)
Double displacement
5.
3 HBr + 1 Al(OH)3 ----> 3 H­2O + 1 AlBr3
a)
Synthesis (or combination)
b)
Decomposition
c)
Single displacement
d)
Double displacement
6.
Na3PO4 + 3 KOH ----> 3 NaOH + K3PO4
a)
Synthesis (or combination)
b)
Decomposition
c)
Single displacement
d)
Double displacement
7.
Pb + FeSO4 ----> PbSO4 + Fe
a)
Synthesis (or combination)
b)
Decomposition
c)
Single displacement
d)
Double displacement
8.
CaCO3 ----> CaO + CO2
a)
Synthesis (or combination)
b)
Decomposition
c)
Single displacement
d)
Double displacement
9.
MgCl2 + Li2CO3 ----> MgCO3 + 2 LiCl
a)
Synthesis (or combination)
b)
Decomposition
c)
Single displacement
d)
Double displacement
10.
2 RbNO3 + BeF2 ----> Be(NO3)2 + 2 RbF
a)
Synthesis (or combination)
b)
Decomposition
c)
Single displacement
d)
Double displacement
11.
P4 +  3 O2 ----> 2 P2O3
a)
Synthesis (or combination)
b)
Decomposition
c)
Single displacement
d)
Double displacement
12.
2 AgNO3 + Cu ----> Cu(NO3)2 + 2 Ag
a)
Synthesis (or combination)
b)
Decomposition
c)
Single displacement
d)
Double displacement
13.
2 C5H5 + Fe ----> Fe(C5H5)2
a)
Synthesis (or combination)
b)
Decomposition
c)
Single displacement
d)
Double displacement
14.
SeCl6 + O2 ----> SeO2 + 3Cl2
a)
Synthesis (or combination)
b)
Decomposition
c)
Single displacement
d)
Double displacement
15.
2 MgI2 + Mn(SO3)2 ----> 2 MgSO3 + MnI4
a)
Synthesis (or combination)
b)
Decomposition
c)
Single displacement
d)
Double displacement
16.
O3  ----> O. + O2
a)
Synthesis (or combination)
b)
Decomposition
c)
Single displacement
d)
Double displacement
17.
2 NO2 ----> 2 O2 + N2
a)
Synthesis (or combination)
b)
Decomposition
c)
Single displacement
d)
Double displacement
18.
Two Reactants and One Product
a)
Decomposition
b)
Combination
c)
Combustion
d)
Single Replacement
19.
CxHy +O2 --> H2O + CO2
a)
Decomposition
b)
Double replacement
c)
Combustion
d)
Single Replacement
20.
One reactant into several products.
a)
Decomposition
b)
Synthesis
c)
Combustion
d)
Single Replacement
21.
One element replaces another in a compound.
a)
Synthesis
b)
Combustion
c)
Single Replacement
d)
Double Replacement
22.
This pictures simulates what type of reaction?
a)
Synthesis
b)
Decomposition
c)
Single Replacement
d)
Double Replacement
23.
The following reaction is an example of what reaction type? 
CoCO3 → CoO + CO2
a)
Synthesis
b)
Decomposition
c)
Single Replacement
d)
Double Replacement
24.
What is the left part of a chemical equation called?
H2 + O → H2O
a)
Reactants
b)
Products 
c)
Yields 
d)
Chemical Equation 
25.
What is the right part of a chemical equation called?
H2 + O → H2O
a)
Reactants
b)
Products 
c)
Yields 
d)
Chemical Equation 
26.
What are the PRODUCTS of the chemical reaction pictured?
a)
CH4 and CO2
b)
CH4 and O2
c)
CO2 and H2O
d)
O2 and H2O
27.
CH4 + 2 O2 → CO2 + 2H2O
 In this equation, CH4 is a
a)
product
b)
reactant
c)
displacement
28.
Which is an example of a solute?
a)
Egg whites
b)
Sugar
c)
Water
d)
Acetone
29.
Which is an example of a solvent?
a)
Salt
b)
Egg whites
c)
Water
d)
Sugar
30.

What is a solvent

a)

A liquid that will dissolve a solid solute

b)

Another word for solution

c)

A thing that make drinks change colour

d)

Usually the solid about to be dissolved

31.

The ___ is the thing being dissolved.

a)

solute

b)

solvent

c)

mixture

d)

solution

32.

The substance being dissolved in a solution is the?

a)

solution

b)

solute

c)

solvent

d)

mixture

33.

The substance in which a solute is dissolved is a?

a)

solution

b)

solvent

c)

alloy

d)

mixture

34.
Solutions are composed of __________ .
a)
salts and solutes
b)
solvents and salts
c)
solutes and alloys
d)
solutes and solvents
35.
If I dissolve sugar in water, what is the solute?
a)
Water
b)
Hydrogen
c)
Sugar
d)
Carbon
36.

If I dissolve carbon dioxide in water, what is the solvent?

a)

Carbon Dioxide

b)

There is no solvent

c)

Oxygen

d)

Water

37.

If I dissolve salt in water, what is the solvent?

a)

salt

b)

water

c)

salt & water

d)

none of the above

38.

If I dissolve sugar in water, what is the solution?

a)

water

b)

sugar

c)

sugary water

d)

none of the above

39.

If I dissolve salt in water, what is the solute?

a)

water

b)

salty water

c)

none of the above

d)

salt

40.

Define the term soluble.

a)

Can dissolve in water

b)

Cannot dissolve in water

c)

Partially dissolves in water

41.

Define the term insoluble.

a)

Can dissolve in water.

b)

Cannot dissolve in water.

c)

Partially dissolves in water.

42.
Balance this equation:
MgCl2 --> Mg4+ Cl2
a)
It's already balanced.
b)
4MgCl2 --> Mg4+ 4Cl2
c)
4MgCl2 --> Mg4+ 5Cl2
43.
Balance this equation:
 2Li + Cl2 -> LiCl
a)
2Li + Cl2 -> 4LiCl2
b)
2Li + Cl2 -> LiCl2
c)
2Li + Cl2 -> 2LiCl
44.
In chemical reactions, what does the principle of conservation of mass mean?
a)
Matter is not created or destroyed.
b)
The total mass of the reactants is greater than the total mass of the products.
c)
The total mass of the reactants is less than the total mass of the products.
d)
Matter is not changed.
45.
How many Hydrogen (H) atoms are in NH3O5
a)
3
b)
4
c)
5
d)
1
46.
Name the part in red:

H2 + O2 -> H2O
a)
Coefficient
b)
Product
c)
Yield
d)
Subscript
47.
Name the part in red:

_2_H2 + _1_O2 -> _2_H2O
a)
Coefficient
b)
Product
c)
Yield
d)
Subscript
48.
How many phosphorus atoms are in PO4?
a)
1
b)
2
c)
3
d)
4
49.
Which number should go in the blank?
_ H2 + O2 -> 2 H2O
a)
1
b)
2
c)
3
d)
0
50.
Is the following equation balanced or unbalanced ? 
Al + O2 --> Al2O3
a)
Balanced
b)
Unbalanced
51.
Is the following equation balanced or unbalanced ? 
N2 +3 H2 --> 2NH3
a)
Balanced
b)
Unbalanced
52.
What are the coefficient used to balance the equation below?
__Ag2O →__ Ag +___O2
a)
2,4,1
b)
1,1,1
c)
2,1,2
d)
2,2,2
53.
How many Oxygen atoms are in 4H2O?
a)
4
b)
1
c)
0
d)
8
54.
 Balance this equation:

__ Al + __ HCl → __ H2 + __ AlCl3
a)
2, 6, 3, 2
b)
it is already balanced
c)
4, 12, 3, 4
d)
2, 1, 4, 5
55.
Is this balanced?
Al + O2 → 2Al2O3
a)
Yes
b)
No
56.
In chemistry, a "mole" is:
a)
The mass of an atom
b)
a large number used to count particles
c)
based on the volume of a substance
57.
How many potatoes are in one dozen potatoes?
a)
10
b)
12
c)
2
d)
6.02 x 1023
58.
How many atoms of iodine are in a mole of iodine?
a)
53
b)
63.55g
c)
126.9
d)
6.02 x 1023
59.
The number 6.02 x 1023 is called...
a)
Obama's number
b)
Bohr's number
c)
Trump's number
d)
Avogadro's number
60.
What is the molar mass of NaCl?
a)
58.45g/mol
b)
28g/mol
c)
12g/mol
d)
6.02 x 1023
61.
How do we get mass from moles?
a)
multiply by avogadro's number
b)
multiply by molar mass
c)
divide by avogadro's number
d)
divide by molar mass
62.
What is the mass of 0.75 moles of (NH4)3PO4?
a)
101.75 g
b)
121.75 g
c)
111.75 g
d)
131.75 g
63.
If I need 20.4 moles of sodium chloride, how much should I weigh out?
a)
0.549 g
b)
112 g
c)
1192 g
d)
5077 g
64.
How many particles would be in 8.4 moles of Octane (C8H18)?
a)
5.77 x 1023
b)
5.04 x 1024
c)
5.77 x 1026
d)
5.04 x 1023
65.
What is the mole used for? 
a)
To measure the amount of grams in a substance
b)
To measure the amount of atoms or molecules in a substance
c)
To measure the amount of energy in a substance
d)
To measure the amount of bonding in a substance 
66.
What do we call the SI unit for amount of a substance?
a)
Avogadros number
b)
kilogram
c)
mole
d)
liter
67.
A mole of Neon contains
6.02 x 1023 _____.
a)
atoms
b)
formula units
c)
ions
d)
molecules
68.
The molar mass of an element is the mass of one ____ of the element.
a)
atom
b)
molecule
c)
mole
d)
gram
69.
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. 
70.
Where do you look to calculate the molar mass?
a)
avogadros number
b)
periodic table 
71.
What is the molar mass of one molecule of Nitrogen N2?
a)
14.01 amu
b)
14.01 g
c)
28.02 g
d)
28.02 amu
72.
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
73.
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   
 
a)
Mg
b)
H2
c)
MgCl2
d)
HCl
74.
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.
75.
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
76.
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.
77.

Theoretical yield = 73g

Actual yield = 62g

Calculate the percent yield.

a)

116%

b)

85%

c)

1.16%

d)

76%

78.
3. The reactant that is not completely used up in a chemical reaction is called the __________ .
a)
spectator reagent
b)
limiting reagent
c)
excess reagent
d)
catalyst
79.
When you use a balanced chemical equation to calculate the amount of a product on paper it is referred to as the 
a)
experimental value
b)
theoretical value
c)
true amount
d)
percent yield
80.
A reaction was predicted to produce 32.4 grams of a compound. When the product was measured, there were only 26.1 grams made. What is the percent yield?
a)
80.6%
b)
6.3%
c)
24.1%
d)
58.5%
81.

Cl2 + 2 KBr → Br2 + 2 KCl

How many grams of potassium chloride can be produced from 356 g of Cl2 and 356 g of potassium bromide?

a)

749 g

b)

223 g

c)

479 g

d)

814 g

82.
Theoretical yield = 73g
Actual yield = 62g
Calculate the percent yield.
a)
1.16%
b)
116%
c)
85%
d)
76%
83.
What is the measured amount of a product obtained from a chemical reaction?
a)
mole ratio
b)
theoretical yield
c)
percentage yield
d)
actual yield
84.

What does WHMIS stand for ?

a)

Workplace hazardous materials information system

b)

walking ham matter information system

c)

work help math information system

d)

welch hungry materials in snacks

e)

information helping hands matter system

85.

What is compressed gas?

a)

a liquid that burns your hands

b)

a gas that is poisonous

c)

a gas substance that is at room temp. and is contained under pressure

d)

a frozen liquid

86.

What is a flammable material?

a)

a material that sets on fire easily

b)

a gas that is lit on fire

c)

a red liquid

d)

a material that freezes easily

87.

What does HHPS stand for?

a)

Household Housing Product Sytem

b)

Hazardous Household Product Symbols

c)

High Height Product System

d)

Hazardous Household Product System

88.

What does WHMIS stand for?

a)

Workforce Housing Materials Information System

b)

Work Height Managing Information Symbols

c)

Wokrplace Hazardous Material Information System

d)

Workplace Material System

89.

In HHPS, what do the three shapes mean?

a)

Aware, Caution, Danger

b)

Danger, Aware, Warning

c)

Caution, Warning, Violent

d)

Caution, Warning, Danger

90.

What does this HHPS picture mean?

a)

Corrosive

b)

Explosive

c)

Inflammable

d)

Poison

91.

What does this HHPS picture mean?

a)

Corrosive

b)

Explosive

c)

Flammable

d)

Poison

92.

What does this HHPS picture mean?

a)

Corrosive

b)

Explosive

c)

Flammable

d)

Poison

93.

What does this HHPS mean?

a)

Caution Corrosive

b)

Warning Flammable

c)

Warning

d)

Danger Corrosive

94.

What does this WHMIS stand for?

a)

Compressed Gas

b)

Flammable and Combustible Material

c)

Oxidizing Material

d)

Poisonous and Infectious Materials: Immediate and Serious Effects

95.

What does this WHMIS stand for?

a)

Compressed Gas

b)

Flammable and Combustible Material

c)

Oxidizing Material

d)

Poisonous and Infectious Materials: Immediate and Serious Effects

96.

What does this WHMIS stand for?

a)

Compressed Gas

b)

Flammable and Combustible Material

c)

Oxidizing Material

d)

Poisonous and Infectious Materials: Immediate and Serious Effects

97.

What does this WHMIS stand for?

a)

Compressed Gas

b)

Flammable and Combustible Material

c)

Oxidizing Material

d)

Poisonous and Infectious Materials: Immediate and Serious Effects

98.

What does this WHMIS picture mean?

a)

Poisonous and Infectious Material: Other toxic effects

b)

Poisonous and Infectious Material: Biohazardous Infectious

c)

Corrosive Material

d)

Dangerously Reactive

99.
Follow all ________________ instructions and directions carefully.
a)
written
b)
verbal
c)
silly
d)
written and verbal
100.
Perform only ______________________
a)
safe experiments
b)
experiments authorized by your teacher
c)
if you are a good actor
d)
experiments that cause FIRE!!!
101.
Report any accident or injury to the teacher _______________, no matter how small it may appear
a)
at the end of the period
b)
immediately
c)
eventually
d)
after you get the situation under control

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