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Final Exam Review

Total questions: 48

Worksheet time: 38mins

Name
Class
Date
1.

The molar volume of a gas at STP occupies _____________.

a)

22.4 L

b)

0˚C

c)

1 kiloPascal

d)

12 grams

2.

In a double replacement, ____________________

a)

The reactants are usually a metal and a nonmetal

b)

One of the reactants is often water

c)

The reactants are generally 2 ionic compounds in aqueous solutions

d)

Energy in the form of light or heat is often produced

3.

Which of the following statements is NOT true about what happens in all chemical reactions?

a)

The ways in which atoms are joined together change

b)

New atoms are formed as products

c)

The starting substances are called reactants

d)

The bonds of reactants are broken and new bonds of products are formed

4.

Chemical equations must be balanced to satisfy ____.

a)

The law of definite proportions

b)

The law of multiple proportions

c)

The law of conservation of mass

d)

Avogadro's principle

5.

What are the coefficients that will balance the skeleton equation below?

AlCl3 + NaOH → Al(OH)3 + NaCl

a)

1,3,1,3

b)

3,1,3,1

c)

1,1,1,3

d)

1,3,3,1

6.

How many moles of aluminum are needed to react completely with 1.2 mol of FeO?

2Al(s) + 3FeO(s) → 3Fe(s) + Al2O3(s)

a)

1.2 mol

b)

0.8 mol

c)

1.6 mol

d)

2.4 mol

7.

What is the name of H2SO4?

a)

hyposulfuric acid

b)

hydrosulfuric acid

c)

sulfuric acid

d)

sulfurous acid

8.

Which of the following shows both the correct formula and correct name of an acid?

a)

HClO2, chloric acid

b)

HNO2, hydronitrous acid

c)

H3PO4, phosphoric acid

d)

HI, iodic acid

9.

When an equation is used to calculate the amount of product that could form during a reaction, then the value obtained is called the ____.

a)

Actual yield

b)

Percent yield

c)

Minimum yield

d)

Theoretical yield

10.

The equation 2C3H7OH + 9O2 → 6CO2 + 8H2O is an example of which type of reaction?

a)

Combustion reaction

b)

Single replacement reaction

c)

Double replacement reaction

d)

Decomposition reaction

11.
Which of the following is an example of synthesis?
a)
Na + Br2 --> NaBr
b)
KClO3 --> KCl + O2
c)
HgO + Cl2-->HgCl + O2
d)
Cl2 + NaBr --> NaCl + Br2
12.

What reaction has the following general formula:

AB --> A + B

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

13.
In a chemical reaction, everything to the right of the arrow is called ______________.
a)
Products
b)
Yields
c)
Molecules
d)
Reactants
14.
What two types of atoms make a covalent bond?
a)
2 Nonmetals
b)
1 Nonmetal and 1 Metal
c)
2 Metals
d)
2 Noble Gases
15.
According to the octet rule most elements need _______ valence electrons.
a)
2
b)
8
c)
6
d)
18
16.
Hydrogen needs _____ electrons in its valence shell to be stable.
a)
4
b)
6
c)
8
d)
2
17.
Is Hydrogen considered a metal or a non-metal?
a)
Metal
b)
Non-metal
18.

A __________ is a subatomic particle with a positive charge.

a)

proton

b)

neutron

c)

electron

d)

nucleus

19.

How many electrons can fit on the 1st energy level (orbital) for any Bohr Model?

a)

2

b)

6

c)

8

d)

10

20.

What is a valence electron?

a)

Electrons in the first energy shell

b)

Electrons in the second energy shell

c)

Electrons in the outer shell

d)

Total number of electrons

21.

What is the mass number of this atom?

a)

1

b)

3

c)

4

d)

7

22.
What two types of measurements make up DENSITY? 
a)
Mass and Volume
b)
Temperature and Mass
c)
Grams and Centimeters
d)
Volume and Weight
23.
What units are used to measure mass?
a)
g
b)
cm3
c)
g/cm3
d)
cm3/g
24.

What is matter?

a)

anything that has mass and takes up space

b)

anything that can be felt

c)

anything that can behave in many different ways

d)

anything that exist on Earth

25.
Which part of the atom is green?
a)
neutrons
b)
protons
c)
nucleus
d)
electrons
26.
Where are metals located on the periodic table?
a)
Blue
b)
Green
c)
Red
27.
Look at this image.  Which object has the LOWEST density in water? How? 
a)
The Ping Pong Ball because it floats to the top 
b)
The bolt because it has sunk to the bottom
c)
The soda cap because it is not just full of air like the Ping Pong ball
28.
What part of an atom is involved in chemical bonding?
a)
protons
b)
neutrons
c)
electrons
d)
nucleus
29.

In a double replacement, ____________________

a)

The reactants are usually a metal and a nonmetal

b)

One of the reactants is often water

c)

The reactants are generally 2 ionic compounds in aqueous solutions

d)

Energy in the form of light or heat is often produced

30.

What are the coefficients that will balance the skeleton equation below?

AlCl3 + NaOH → Al(OH)3 + NaCl

a)

1,3,1,3

b)

3,1,3,1

c)

1,1,1,3

d)

1,3,3,1

31.

The equation 2C3H7OH + 9O2 → 6CO2 + 8H2O is an example of which type of reaction?

a)

Combustion reaction

b)

Single replacement reaction

c)

Double replacement reaction

d)

Decomposition reaction

32.

An ionic bond is between

a)

metal and metal

b)

metal and nonmetal

c)

nonmetal and nonmetal

33.

Is this the correct lewis dot for Chlorine?

a)

yes

b)

no

34.

Decomposing of an apple is an example of...

a)

chemical change

b)

physical change

35.

Which one is the least reactive group?

a)

Alkali metal

b)

Alkali earth metal

c)

Halogens

d)

Noble Gases

36.

Which answer is an example of a chemical change?

a)

Boiling water

b)

rusting iron

c)

dissolving powder

d)

freezing water

37.

Which answer is an example of a physical change?

a)

freezing water

b)

burning coal

c)

rusting iron

d)

baking a cake

38.

1s22s22p63s23p63d104s24p3

Which element does this configuration belong to?

a)

Arsenic

b)

Calcium

c)

Lithium

d)

Aluminum

39.

Which of the following substances are elements?

a)

water

b)

salt

c)

carbon dioxide

d)

hydrogen

40.

Which describes a liquid?

a)

It keeps its shape, and has weight.

b)

It takes the shape of its container and has weight.

c)

It has NO weight or shape.

41.
The right of the arrow is called?
a)
Reactant 
b)
Product
c)
Yields
42.
List the coeffecieints in order.
a)
4,3,2
b)
2,2,3
c)
4,2,3
d)
1,2,3
43.
List the subscripts in the product only.
a)
2
b)
2,2,3
c)
2,3
d)
4,3,2,
44.

If an element has 11 protons and 12 Neutrons, what is it's atomic mass?

a)

12

b)

11

c)

23

d)

1

45.

Based on the Bohr model, how many valence electrons does this atom have?

a)

7

b)

1

c)

5

d)

4

46.

What type of reaction occurs between an acid and a base?

a)

Combustion

b)

Synthesis

c)

Neutralization

d)

Double Replacement

47.

What is the molarity of 9 moles of hydrochloric acid in 3 L of water. 

a)

3

b)

1

c)

6

d)

9

48.

Bases have a pH of

a)

7

b)

Less than 7

c)

More than 7

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