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Chemistry 1st Semester Final

Total questions: 85

Worksheet time: 3hrs 10mins

Name
Class
Date
1.
What is the formula for Hydrosulfuric Acid?
a)
H2(SO3)
b)
H2S
c)
H2(SO2)
d)
H2(SO4)
2.
What is the name of N2O3
a)
Nitrogen trioxide
b)
Dinitrogen oxide
c)
Dinitrogen trioxide
d)
Nitrogen oxide
3.
What is the chemical formula for Tetrasulfur pentoxide?
a)
SO
b)
S4O
c)
S4O5
d)
S5O4
4.

What is the oxidation number for Carbon?

a)

+4 and -4

b)

-3

c)

+1

5.

Why is the molecule polar?

a)

There are nonbonding pairs on the central atom.

b)

There are different types of elements bonded to the central atom.

c)

There are no nonbonding pairs on the central atom and all of the atoms bonded to the central atom are the same.

6.
Name the acid: HC2H3O2
a)
Acetic Acid
b)
Acetous Acid
c)
Hydrogen Acetate
d)
Hydrogen Dicarbon Trihydrogen Dioxygen
7.

Classify the following molecule.

a)

polar

b)

nonpolar

8.
A "period" is a ____________ on the periodic table.
a)
column
b)
row
9.
A "group" is a ____________ on the periodic table.
a)
column
b)
row
10.
What is the formula for Hydrosulfuric Acid?
a)
H2(SO3)
b)
H2S
c)
H2(SO2)
d)
H2(SO4)
11.

Which of these is an example of a Heterogeneous mixture:

a)

Tea with sugar

b)

oil and water

c)

NaCl

d)

H2O

12.

Which of these is an example of a Homogeneous mixture:

a)

Tea with sugar

b)

oil and water

c)

NaCl

d)

H2O

13.

1s22s22p63s23p63d104s24p3

Which element does this configuration belong to?

a)

Arsenic

b)

Calcium

c)

Lithium

d)

Aluminum

14.

Which answer is an example of a physical change?

a)

baking a cake

b)

burning coal

c)

rusting iron

d)

dissolving powder

15.

Which type of flask is this?

a)

Beaker

b)

Volumetric

c)

Erlenmeyer

d)

Graduated Cylinder

16.

There are ___ meters in 25 kilometers (km).

a)

250m

b)

2500m

c)

25000m

d)

.025m

17.

How many kilograms are in 774,000 grams?

a)

.0774 Kg

b)

7,740 Kg

c)

774 Kg

d)

774,000,000 Kg

18.

When using descriptive words like boiling, blue and bubbles as you carry out a chemical experiment, you are recording and collecting.......

a)

Quantitative Data

b)

Qualitative Data

c)

Verified Data

d)

Estimated Data

19.

Which of the following experiment demonstrated that there must be some positive charge in the nucleus?

a)

Neils Bohr Model of the Atom

b)

Rutherford's Gold Foil

c)

J.J. Thompson's Plum Pudding Model

d)

John Dalton's Atomic Theory

20.

If you subtract the atomic number from the atomic mass, the number remaining is the same as.....

a)

the number of neutrons in the atom.

b)

the number of electrons in the atom.

c)

the number of protons in the atom.

d)

the nuclear mass of the atom.

21.

This subatomic particle defines the element.

a)

Neutron

b)

Proton

c)

Electron

d)

Nucleus

22.

Which one is the electron configuration for an oxygen atom?

a)

1s22s22p63s23p64s2

b)

1s22s22p4

c)

1s22s22p6

d)

1s22s22p63s23p6

23.

What is the abbreviated electron configuration for Sulfur atom?

a)

[Ar] 3p4

b)

[He] 3s23p4

c)

[Ne] 3s23p4

d)

[Na] 3s23p3

24.

When a metal bonds with a non-metal, the bond that forms is called___?

a)

Metallic

b)

Covalent

c)

Ionic

d)

Shared

25.

What kind of bond forms between two nonmetals?

a)

ionic

b)

covalent

c)

metallic

d)

symbiotic

26.

What are valence electrons?

a)

sum of the protons and neutrons

b)

protons minus electrons

c)

electrons in the innermost shell (orbital)

d)

electrons in the outermost shell (orbital)

27.

What is the correct formula for Sodium Oxide?

a)

NaO

b)

NaO2

c)

Na2O

d)

Na2O2

28.

How would you name MgCl2?

a)

Magnesium chlorine

b)

Magnesium chloride

c)

Magnesium dichloride

d)

Magensium II chloride

29.

An -ate or -ite at the end of a compound name usually indicates that the compound contains _____________.

a)

fewer electrons than protons

b)

neutral molecules

c)

only two elements

d)

a polyatomic ion

30.

What is the name of H2SO4?

a)

hyposulfuric acid

b)

hydrosulfuric acid

c)

sulfuric acid

d)

sulfurous acid

31.

A metallic bond is between

a)

metal and metal

b)

metal and nonmetal

c)

nonmetal and nonmetal

32.

What is the oxidation number for Carbon?

a)

+4 and -4

b)

-3

c)

+1

33.

What is the oxidation number for Nitrogen?

a)

+4 and -4

b)

-3

c)

+1

34.

Which Lewis dot matched the configuration:

1s21s^2   2s22s^2   2p22p^2  

a)
b)
c)
35.

What is the correct Lewis Dot diagram for a molecule of Nitrogen trihydride (NH3)?

a)
b)
c)
36.

Which name represents the formula Fe2O3Fe_2O_3  ?

a)

Iron (III) oxide

b)

Iron (II) oxide

37.

Atoms of the same element that have different numbers of neutrons.

a)

Isotope

b)

Covalent Bond

c)

Enzymes

d)

Ionic Bonds

38.

A covalent bond is formed as a result of

a)

transferring electrons

b)

sharing electrons

c)

transferring protons

d)

sharing protons

39.
Organic compounds are compounds contain ______________.
a)
O
b)
C
c)
N
d)
S
40.
Which type of bond has one pair of electrons shared between atoms?
a)
ionic
b)
single covalent
c)
metallic
d)
double covalent
41.
Which is true of binary ionic compounds?
a)
They consist of only 2 atoms.
b)
They have bonds that share 2 valence electrons.
c)
They contain 2 different anions.
d)
They consist of atoms of only 2 element types.
42.
Which is the correct name for the compound FeS?
a)
iron (II) sulfide (II)
b)
iron (II) sulfide
c)
iron (I) sulfide
d)
iron sulfide
43.
Which is the charge that results when oxygen becomes an ion?
a)
+3
b)
+2
c)
-2
d)
-3
44.
Which category of elements have the property of being malleable and ductile?
a)
gases
b)
metals
c)
metalloids
d)
nonmetals
45.
Which is the most important characteristic in determining an element's chemical properties?
a)
the number of protons and neutrons in its nucleus
b)
which period it is found in
c)
the number of valence electrons it contains
d)
its outermost energy level
46.
What is the name of N2O3
a)
Nitrogen trioxide
b)
Dinitrogen oxide
c)
Dinitrogen trioxide
d)
Nitrogen oxide
47.
What is the chemical formula for Tetrasulfur pentoxide?
a)
SO
b)
S4O
c)
S4O5
d)
S5O4
48.
What would be the proper chemical formula for combining Al3+ and Cl- :
a)
AlCl3
b)
Al3Cl
c)
AlCl
d)
Al3Cl3
49.
How many elements are in the this compound?
H2CO4N5
a)
11
b)
4
c)
12
d)
5
50.
Ionic Bonding involves...
a)
The transfer of protons
b)
The transfer of nuetrons 
c)
The transfer of electrons
d)
None Of the above
51.
What happens when the sodium atom loses an electron?
a)
It become negatively charged 
b)
It become positively charged
c)
none
52.

Decomposing of an apple is an example of...

a)

chemical change

b)

physical change

53.
A(n) _______ is a substance with a pH greater than 7.
a)
Base
b)
Acid
c)
Buffer
d)
Water
54.
A(n) ______ is a substance with a pH less than 7
a)
Acid
b)
Alkaline
c)
Base
d)
Buffer
55.

He created the Planetary Model of the atom

a)

Bohr

b)

Dalton

c)

Rutherford

d)

Thomson

56.

What will this atom do to become stable?

a)

Gain 3 e-

b)

Gain 5 e-

c)

Lose 3 e-

d)

Lose 5 e-

e)

Already stable

57.

When there are more protons than electrons in an atom it is a...

a)

cation, positively charged

b)

dogion, positively charged

c)

anion, negatively charged

d)

uhion, negatively charged

e)

isotope, positively charged

58.

Assuming it is neutral, what element is this?

a)

Fluorine

b)

Helium

c)

Argon

d)

Oxygen

59.
What element is represented in this Bohr Model? 
a)
Carbon
b)
Hydrogen
c)
Aluminum
d)
Lithium
60.

What will this element do to become stable?

a)

Gain 7 e-

b)

Lose 1 e-

c)

Gain 1 e-

d)

Lose 3 e-

61.

This element tends to _________________ and form a(n) ________________

a)

lose 4 e-; anion

b)

gain 4 e-; anion

c)

lose 2 e-; cation

d)

gain 2 e-; cation

e)

lose 4 e-; cation

62.
Which list of elements contains two metalloids?
a)
a. Si, Ge, Po, Pb
b)
b. As, Bi, Br, Kr
c)
c. Si, P, S, Cl
d)
d. Po, Sb, I, Xe
63.
According to the Periodic Table, which element has more than one positive oxidation state (number)?
a)
a. cadmium
b)
b. iron
c)
c. silver
d)
d. zinc
64.
Different isotopes of the same element must have a different 
a)
a. mass number
b)
b. atomic number
c)
c. number of protons
d)
d. number of electrons
65.

What does IUPAC stand for?

a)

International Union of Pure and Applied Chemistry

b)

International Union of Physical and Aphysical Chemistry

c)

International Union of Potassium and Arsenic Chemistry

d)

International Union of Your Mom

66.

Classify the following molecule.

a)

polar

b)

nonpolar

67.

Why is the molecule polar?

a)

There is a nonbonding pair on the central atom.

b)

There are different types of elements bonded to the central atom.

c)

There are no nonbonding pairs on the central atom and all of the atoms bonded to the central atom are the same.

68.
What is the VSEPR theory used to predict?
a)
Bond Strength
b)
Polarity
c)
Molecular Shape
d)
Electronegativity
69.

The attraction that an atom has for shared electrons in bonds is

a)

electron affinity.

b)

electronegativity.

c)

electropositivity.

d)

electromagnetism.

70.

Excluding the Noble gas family, where on the Periodic Table are the elements with the highest electronegativity located?

a)

upper right

b)

lower right

c)

upper left

d)

lower left

71.

Phosphorus has an electronegativity value of 2.1. Chlorine's electronegativity value is 3.0. What type of bond will these two elements form?

a)

ionic

b)

nonpolar covalent

c)

polar covalent

d)

metallic

72.

Why is it difficult to wash oil from your hands with plain water?

a)

Both substances are polar. Like polarities repel.

b)

Both substances are nonpolar. Like polarities repel.

c)

Water is nonpolar, and oil is polar, so they will not combine.

d)

Water is polar, and oil is nonpolar, so they will not combine.

73.

KCl, potassium chloride, is used to stop the heart during open-heart surgery. What type of compound is it?

a)

ionic

b)

polar covalent

c)

nonpolar covalent

d)

metallic

74.

Bronze is an alloy of copper (Cu) with primarily tin (Sn) as the second most prevalent element. What type of bonding occurs in a sample of bronze?

a)

ionic

b)

polar covalent

c)

nonpolar covalent

d)

metallic

75.

Water is a polar covalent molecule. Which represents the correct assignment of dipoles for H2O? Remember: the tip of the arrow is the partial negative end and the bottom of the arrow (which looks like a plus sign) is the partial positive end.

a)
b)
c)
d)
76.

How many TOTAL resonance structures can exist for this molecule?

a)

1 total structures

b)

2 total structures

c)

3 total structures

d)

4 total structures

77.
According to VSEPR, molecules adjust their shapes to keep which of the following as far away as possible?
a)
Pairs of valence electrons
b)
Inner shell electrons
c)
Mobile Electrons
d)
Electrons closest to the nucleus
78.

What is the correct Lewis Dot Structure for ammonia NH3

a)
b)
c)
d)
79.

Which is the correct molecular structure for carbon dioxide?

a)
b)
c)
d)
80.

Binary acids start with "____________"

a)

acid

b)

nitric

c)

hydraulic

d)

hydro

81.

When naming binary acids, the ending always changes to:

a)

-ate

b)

-ite

c)

-ic

d)

-ous

82.

When naming oxyacids, change "-ite" to:

a)

-ate

b)

-ic

c)

-ous

d)

-ite

83.

When naming oxyacids, change "-ate" to:

a)

-ate

b)

-ic

c)

-ous

d)

-ite

84.
What element do all acids contain?
a)
H
b)
O
c)
C
d)
He
85.

The metals and nonmetals are divided by a "stair step." What are the elements called that are attached to the stair step?

a)

gases

b)

metals

c)

nonmetals

d)

metalloids

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