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Honors Chemistry Semester One Exam Review

Total questions: 64

Worksheet time: 1hrs 15mins

Name
Class
Date
1.

Which of the following is the best description of an element.

a)

a substance that cannot be broken down into simpler substances

b)

a naturally occurring mineral made of more than one substance

c)

a small particle made with a specific chemical composition

d)

a collection of atoms that have different abilities when joined together

2.

How many of these substances are elements


NaOH Cu H2O N2 H2

a)

2

b)

3

c)

4

d)

5

3.

Which of the following characteristics is shared by all chemical reaction

a)

produce a precipitate

b)

show a color change

c)

release heat energy

d)

form new substance

4.

unlike non-metals, most metals tend to-

a)

conduct electricity and heat well

b)

be gases at room temperature

c)

break easily when hammared

d)

have less luster and shine

5.

Density is calculated by dividing the mass of a substance by its-

a)

volume

b)

weight

c)

lenght

d)

temperature

6.
How would you write 4.3756 x 104 in standard form?
a)
437,560,000
b)
0.00043756
c)
43,756
d)
4,3756
7.
How would you write 0.0005 in scientific notation?
a)
50 x 105
b)
5 x 10^-4 
c)
5 x 103
d)
.5 x 103
8.
How many electrons can be held in the first energy level ?
a)
1
b)
2
c)
8
d)
16
9.
How many electrons can the 2nd energy level hold ?
a)
2
b)
4
c)
8
d)
16
10.
____________ can move from one energy level to another when they gain or lose energy.
a)
electrons
b)
protons
c)
neutrons
d)
atoms
11.
What's a valence electron?
a)
electrons in the second energy level
b)
electrons in the outermost energy level
c)
the atomic number
d)
electrons in the first level
12.

What element is represented in this Bohr Model?

a)

Carbon

b)

Hydrogen

c)

Aluminum

d)

Lithium

13.
How many meters in a kilometer?
a)
100
b)
10
c)
1000
d)
1
14.

Sodium sulfate and barium chloride react with each other to form sodium chloride and barrium sulfate as shown. Which statement MOST accurately describes the mass of the reactants comparred to the mass of the products?

a)

The mass of the reactants is the same as the mass of the products.

b)

The products have a greater mass because matter was created during the reaction.

c)

The reactants have a greater mass because some of the mass was converted to heat.

d)

The reactants have a greater mass because some of the matter was destroyed by the reaction.

15.

In the late 1700's, Antoine Lavoisier performed a series of experiments to find out what happened when a substance burned. In each experiment, he observed that the weight of a container and its contents was the same at the end of the experiment as it had been in the beginning. These observations led him to propose the law of

a)

combustion

b)

fixed proportions

c)

conservation of mass

d)

conservation of energy

16.
The SI base unit of length is the
a)
gram
b)
foot
c)
yard
d)
meter
17.
A description of how close a measurement is to its true value
a)
accuracy
b)
precision
c)
significant figures
d)
explanation
18.
An atom's ability to undergo chemical reactions is determined by its
a)
protons.
b)
innermost electrons.
c)
neutrons.
d)
outermost electrons.
19.
The information in an experiment that describes color, odor, or shape is known as
a)
quantitative data
b)
qualitative data
20.
A description of how close measurements are to each other is
a)
accuracy
b)
closeness
c)
precision
d)
target location
21.
An atom has 12 protons, 12 electrons and 14 neutrons.  What is the mass number?
a)
12
b)
24
c)
26
d)
38
22.
Scientist who first came up with the idea and term "atom".
a)
Dalton
b)
Bohr
c)
Einstein
d)
Democritus
23.
In the picture shown, element x is likely __________.
a)
Carbon
b)
Oxygen
c)
Nitrogen
d)
Fluorine
24.

Tiny pieces that all matter is made of?

a)

Ions

b)

Molecules

c)

Atoms

d)

Electrons

25.

Which of the following is used for chemical symbols today?

a)

drawings

b)

icons

c)

letters

d)

numbers

26.

How many significant figures are in the measurement 811.40 grams?

a)

two

b)

three

c)

four

d)

five

27.

Express the product of 2.2 mm and 5.00 mm using the correct number of significant digits.

a)

10 mm 2

b)

11 mm2

c)

11.0 mm2

d)

11.00 mm2

28.

Chlorine boils at 239 K. What is the boiling point of chlorine expressed in degrees Celsius?

a)

°C\degree C 93

b)

34 °C\degree C

c)

-61 °C\degree C

d)

-34 °C\degree C

29.

Which of the following is NOT a part of Dalton's atomic theory?

a)

All elements are composed of atoms.

b)

Atoms are always in motion.

c)

Atoms of the same element are identical.

d)

Atoms that combine do so in simple whole-number ratios.

30.

The atomic number of an element is the total number of which particles in the nucleus?

a)

neutrons

b)

protons

c)

electrons

d)

protons & electrons

31.

What does the number 84 in the name krypton-84 represent?

a)

the atomic number

b)

the mass number

c)

the sum of protons and electrons

d)

twice the number of protons

32.

What is the maximum number of d orbitals in a principal energy level?

a)

1

b)

2

c)

3

d)

5

33.

What types of atomic orbitals are in the third principal energy level?

a)

s and p only

b)

p and d only

c)

s, p, and d only

d)

s, p, d, and f

34.

If three electrons are available to fill three empty 2p orbitals, how will the electrons be distributed in three orbitals?

a)

one electron in each orbital

b)

two electrons in one orbital, one in another, none in the third

c)

three in one orbital, none in the other two

d)

three electrons cannot fill three empty 2p atomic orbitals

35.
How many inches are in 1 mile?
(Hint:  5280 ft = 1 mi)
a)
66,330 in
b)
63,360 in
c)
63,660 in
d)
63,066 in
36.

Convert 20 tons/year to ounces/day

a)

.0004 ounces/day

b)

6.8 ounces/day

c)

109.6 ounces/day

d)

1,753.42 ounces/day

37.
Complete the statement:
5 cm/min = ______ m/day
(100 cm = 1 m)
a)
72
b)
840
c)
7.2
d)
5,040,000
38.
A possible explanation to a problem that has not yet been tested. 
a)
data
b)
theory
c)
hypothesis
d)
fact
39.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what are the controlled variables?
a)
Type of plant, amount of music, and sunlight
b)
Water, apple juice, milk
c)
Plant growth
40.
Which has the greater EN: 
Cl or Al?
a)
Cl
b)
Al
41.
Which of the following will have a larger radius than Zinc?
a)
Gallium
b)
Aluminum
c)
Magnesium
d)
Strontium
42.
As you move down the periodic table atoms get bigger.  This is because ____________.
a)
The atoms have more mass.
b)
The atoms have more protons.
c)
The atoms have more energy levels
d)
The atoms have more nuetrons
43.
Ionization energy is...
a)
the energy required to add an electron to a specific atom
b)
how much energy it takes to remove an electron from an atom
c)
the energy required to shield the outer electrons from the nucleus
d)
a measure of the ability of an atom to attract electrons
44.
Metals have the largest - 
a)
atomic radius and electronegativity
b)
electronegativity and ionization energy
c)
atomic radius only
d)
ionization energy and atomic radius
45.
The atomic number tells you what?  READ THE ANSWERS CAREFULLY
a)
only the number of electrons
b)
 only the number of protons
c)
only the number of neutrons
d)
the number of both electrons and protons in an atom.
46.
What does the atomic mass tell you? 
a)
Basically,the number of electrons and protons
b)
The number of neutrons
c)
Basically, the number of protons and neutrons
d)
The number of protons.
47.
Which one of these is not a noble gas?
a)
Helium
b)
Radon
c)
Iodine
d)
Krypton
48.

Atoms of elements that are in the same group have the same number of

a)

protons.

b)

neutrons.

c)

valence electrons.

d)

protons and neutrons.

49.

Mendeleev left gaps in his periodic table because

a)

the table was too small.

b)

protons belonged there.

c)

the table was too full.

d)

no known elements fit there.

50.

Which of the following elements would most likely be a shiny, gray-colored solid at room temperature, conduct electricity, and dent when hit with a hammer?

a)

argon (Ar)

b)

chlorine (Cl)

c)

sulfur (S)

d)

aluminum (Al)

51.
What electron configuration matches an oxygen atom?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
52.
The electron configuration of an atom is 1s22s22p6.  The number of electrons in the atom is 
a)
3
b)
6
c)
8
d)
10
53.
Which element is pictured?
a)
neon
b)
fluorine
c)
magnesium
d)
argon
54.
Electrons occupy orbitals of lowest energy first is part of what electron configuration rule?
a)
Hund’s Rule
b)
Aufbau Principle
c)
Pauli Exclusion Principle
55.
Electron arrangement that uses arrows
a)
Electron configuration
b)
Shorthand configuration
c)
Lewis dot structure
d)
Orbital diagram
56.
What is the noble gas configuration for phosphorus?
a)
[Ar] 3p5
b)
[He] 3s2 3p5
c)
[Ne] 3s2 3p3
d)
[Na] 3s2 3p5
57.
What does Pauli exclusion principle state ?
a)
states that each electron occupies the lowest energy orbital available
b)
states that a maximum of two electrons can occupy a single atomic orbital, but if only if the electros have opposite spins
c)
states that single electrons electrons with the same spin must occupy each-energy orbital before additional electrons with opposite spins can occupy the same orbitals
58.

What does Hund's rule state ?

a)

states that single electrons electrons with the same spin must occupy each-energy orbital before additional electrons with opposite spins can occupy the same orbitals

b)

states that each electron occupies the lowest energy orbital available

c)

states that a maximum of two electrons can occupy a single atomic orbital, but if only if the electros have opposite spins

59.
What does an atom's electron-dot structure consist of ? 
a)
the elements atomic number and mass number which represents the number of protons and neutrons
b)
the element's symbol, which represents the atomic nuclues and inner-level electrons,surrounded by dots representing all of the atom's valence electrons
60.

Na ionizes to a charge of _______

a)

+1

b)

+2

c)

-1

d)

-2

61.

N ionizes to a charge of _______.

a)

+3

b)

-3

c)

+2

d)

-2

62.
What is an ion?
a)
A Charged Atom
b)
A Large Atom
c)
A Small Atom
d)
A Cute Atom
63.
Why are ions formed?
a)
To make our lives difficult
b)
Because atoms want 8 valence electrons
c)
Because atoms have the same number of protons and electrons
d)
Because atoms gained neutrons
64.
Make sure you get enough Potassium in your diet!
a)
Huh?
b)
K
c)
I <3 bananas
d)
Sure

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