Chemistry 51 - Fundamentals of Chemistry » Fall 2021 » Chapter 3 Homework
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Question #1
CCl4 is an example of an ionic compound.
A.
FALSE
B.
TRUE
Question #2
Chlorine requires a single electron to satisfy the octet rule.
A.
TRUE
B.
FALSE
Question #3
If two atoms X and Y form ions with the same charge, they probably belong to the same group in the periodic table.
A.
FALSE
B.
TRUE
Question #4
PbNO3 has a polyatomic anion.
A.
FALSE
B.
TRUE
Question #5
The charge of the iron ion in FeCl2 is 2+.
A.
FALSE
B.
TRUE
Question #6
The formula unit for calcium chloride is CaCl.
A.
FALSE
B.
TRUE
Question #7
The bond formed between two atoms after there is a transfer of electrons between them is called a(n) _____.
A.
covalent bond
B.
atomic bond
C.
ionic bond
D.
hydrogen bond
E.
elemental bond
Question #8
The formula for sodium sulfate is _____.
A.
NaSO4
B.
Na2SO4
C.
SO4NaNa
D.
NaNaSO4
E.
SO4Na2
Question #9
The formula for the sulfide ion is _____.
A.
SO5–
B.
SO24–
C.
SO42–
D.
SO33–
Question #10
The group headed by nitrogen has _____ valence electrons.
A.
three
B.
four
C.
two
D.
one
E.
five
Question #11
What is MgCl2 known as?
A.
Manganous chlorine
B.
Dichlorine magnesium
C.
Magnesium chloride
D.
Mono magnesium chlorinide
E.
Chloromagnesium
Question #12
What is the charge on a molecule of NaCl?
A.
2–
B.
2+
C.
1+
D.
0
E.
1–
Question #13
What is the chemical formula of barium chloride?
A.
BaCl3
B.
BaCl2
C.
BaCl
D.
Ba2Cl3
E.
Ba2Cl
Question #14
What is the formula for aluminum fluoride?
A.
F3Al
B.
Al3F
C.
FAl3
D.
Al2F6
E.
AlF3
Question #15
What is the formula for calcium hydroxide?
A.
Ca(OH)2
B.
CaOH
C.
CaOH3
D.
(Ca)2OH
E.
Ca2OH
Question #16
What is the polyatomic ion in H2SO4?
A.
O42–
B.
SO2–
C.
H22–
D.
SO42–
E.
H2S2–
Question #17
A.
The valence electron rule
B.
Outermost shell rule
C.
Dalton's rule
D.
The octet rule
E.
The d subshell rule
Question #18
Why do atoms of the same group form ions of the same charge?
A.
They have the same number of neutrons
B.
They have the same number of valence neutrons
C.
They have the same number of valence electrons
D.
They have the same number of protons
E.
They have the same number of electrons
Question #19
Write the compound formed by oxygen and aluminum ions.
A.
AlO2
B.
(AlO)2
C.
Al3O2
D.
AlO
E.
Al2O3
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