Chem 051 - Fundamentals of Chemistry » Winter 2021 » HMK1
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Chem 051 - Fundamentals of Chemistry ] course for $25 USD.
Existing Quiz Clients Login here
Question #1
Sulfur has 16 valence electrons.
A.
TRUE
B.
FALSE
Question #2
Which of the following elements is a noble gas?
A.
chlorine
B.
oxygen
C.
argon
D.
bromine
E.
nitrogen
Question #3
Select the correct symbol for the element named. potassium
A.
Ko
B.
K
C.
Po
D.
Pt
E.
P
Question #4
The mass number of an atom can be calculated from
A.
the number of neutrons.
B.
the number of protons.
C.
the number of electrons.
D.
the number of protons plus neutrons.
E.
the number of electrons plus protons.
Question #5
Select the correct symbol for the element named. silver
A.
Au
B.
AG
C.
Ag
D.
Si
E.
S
Question #6
The density of a solution is 1.18 g/mL. Its specific gravity is
A.
0.847.
B.
0.118.
C.
1.18.
D.
11.8.
E.
1.2.
Question #7
The amount of space occupied by a substance is its
A.
weight.
B.
length.
C.
mass.
D.
density.
E.
volume.
Question #8
Which of the following conversion factors is a measured number?
A.
12 in/ft
B.
12 eggs/dozen
C.
25 miles/gallon
D.
10 cm/dm
E.
16 oz/lb
Question #9
A cubic centimeter is a unit of length.
A.
FALSE
B.
TRUE
Question #10
The number 0.0500 has four significant figures.
A.
TRUE
B.
FALSE
Question #11
The smallest particle of an element that retains the characteristics of the element is a(n)
A.
atom.
B.
electron.
C.
neutron.
D.
proton.
E.
nucleus.
Question #12
A value of 25 °C is a measurement of
A.
temperature.
B.
mass.
C.
volume.
D.
density.
E.
distance.
Question #13
The number 650 000 has two significant figures.
A.
FALSE
B.
TRUE
Question #14
The atomic number of an atom is equal to the number of
A.
neutrons plus protons.
B.
electrons plus protons.
C.
nuclei.
D.
neutrons.
E.
protons.
Question #15
Which of the following is the basic unit of volume in the metric system?
A.
kilogram
B.
liter
C.
centimeter
D.
meter
E.
gram
Question #16
A liquid has a volume of 34.6 mL and a mass of 46.0 g. What is the density of the liquid?
A.
0.752 g/mL
B.
1.33 g/mL
C.
0.663 g/mL
D.
1.00 g/mL
E.
1330 g/mL
Question #17
The measurement 0.000 004 3 m, expressed correctly using scientific notation, is
A.
4.3 m.
B.
4.3 x 10-7 m.
C.
0.43 x 10-5 m.
D.
4.3 x 106 m.
E.
4.3 x 10-6 m.
Question #18
The symbol for potassium is P.
A.
TRUE
B.
FALSE
Question #19
5.21 cm is the same distance as
A.
5210 m.
B.
0.00521 km.
C.
52.1 dm.
D.
5.21 mm.
E.
0.0521 m.
Question #20
Consider a neutral atom with 30 protons and 34 neutrons. The atomic number of the element is
A.
32
B.
30
C.
34
D.
64
E.
94
Question #21
According to the atomic theory,
A.
atoms of the same element combine to form compounds.
B.
a compound can contain different numbers of atoms as long as it has the same kinds of atoms.
C.
all atoms are different.
D.
all matter is made up of tiny particles called electrons.
E.
atoms are neither created nor destroyed during a chemical reaction.
Question #22
Which of the following elements is a nonmetal?
A.
calcium
B.
silver
C.
sodium
D.
nitrogen
E.
iron
Question #23
Select the correct symbol for the element named. aluminum
A.
Au
B.
Am
C.
Al
D.
Sn
E.
Ag
Question #24
Which of the following is a measurement of mass in the metric system?
A.
meter
B.
milliliter
C.
Celsius
D.
centimeter
E.
kilogram
Question #25
Iron rusting is a chemical change.
A.
FALSE
B.
TRUE
Question #26
When 2610 + 11.7 + 0.22 are added, the answer to the correct number of decimal places is ________.
A.
2621.9
B.
2620
C.
2621
D.
2621.92
E.
2600
Question #27
Organic chemistry is the study of substances that contain carbon.
A.
FALSE
B.
TRUE
Question #28
Which of the following descriptions of a subatomic particle is correct?
A.
A neutron has no charge and its mass is negligible.
B.
A neutron has a positive charge and a mass of approximately 1 amu.
C.
An electron has a negative charge and a mass of approximately 1 amu.
D.
A proton has a positive charge and a mass of approximately 1 amu.
E.
A proton has a positive charge and a negligible mass.
Question #29
Air is a heterogeneous mixture.
A.
FALSE
B.
TRUE
Question #30
The correct answer for the addition of 7.5 g + 2.26 g + 1.311 g + 2 g is
A.
13.1 g.
B.
13.071 g.
C.
10 g.
D.
13.0 g.
E.
13 g.
Question #31
Select the correct symbol for the element named. mercury
A.
Mr
B.
Au
C.
Hg
D.
Au
E.
Na
Question #32
The atomic number is equal to the number of protons.
A.
TRUE
B.
FALSE
Question #33
Au is the symbol for
A.
aluminum.
B.
gold.
C.
sodium.
D.
silver.
E.
argon.
Question #34
Potassium has one valence electron.
A.
FALSE
B.
TRUE
Question #35
Select the correct symbol for the element named. sodium
A.
So
B.
Au
C.
Na
D.
Sm
E.
No
Question #36
What is the mass number of an atom of potassium that has 20 neutrons?
A.
35
B.
39
C.
15
D.
59
E.
19
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Chem 051 - Fundamentals of Chemistry ] course for $25 USD.
Existing Quiz Clients Login here