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.
TRUE
B.
FALSE
Question #2
Chlorine requires a single electron to satisfy the octet rule.
A.
FALSE
B.
TRUE
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.
TRUE
B.
FALSE
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.
hydrogen bond
B.
elemental bond
C.
covalent bond
D.
atomic bond
E.
ionic bond
Question #8
The formula for sodium sulfate is _____.
A.
NaNaSO4
B.
Na2SO4
C.
SO4Na2
D.
NaSO4
E.
SO4NaNa
Question #9
The formula for the sulfide ion is _____.
A.
SO24–
B.
SO42–
C.
SO5–
D.
SO33–
Question #10
The group headed by nitrogen has _____ valence electrons.
A.
two
B.
three
C.
five
D.
four
E.
one
Question #11
What is MgCl2 known as?
A.
Dichlorine magnesium
B.
Mono magnesium chlorinide
C.
Magnesium chloride
D.
Chloromagnesium
E.
Manganous chlorine
Question #12
What is the charge on a molecule of NaCl?
A.
1–
B.
2+
C.
0
D.
2–
E.
1+
Question #13
What is the chemical formula of barium chloride?
A.
BaCl
B.
Ba2Cl3
C.
Ba2Cl
D.
BaCl2
E.
BaCl3
Question #14
What is the formula for aluminum fluoride?
A.
AlF3
B.
F3Al
C.
FAl3
D.
Al2F6
E.
Al3F
Question #15
What is the formula for calcium hydroxide?
A.
Ca(OH)2
B.
CaOH3
C.
Ca2OH
D.
(Ca)2OH
E.
CaOH
Question #16
What is the polyatomic ion in H2SO4?
A.
H22–
B.
O42–
C.
SO42–
D.
SO2–
E.
H2S2–
Question #17
A.
The d subshell rule
B.
The octet rule
C.
Outermost shell rule
D.
The valence electron rule
E.
Dalton's 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 protons
C.
They have the same number of electrons
D.
They have the same number of valence electrons
E.
They have the same number of valence neutrons
Question #19
Write the compound formed by oxygen and aluminum ions.
A.
AlO2
B.
(AlO)2
C.
Al3O2
D.
Al2O3
E.
AlO
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