Nelson Chemistry Chapter 8 Quiz
Click on the correct answer
1
The reason
ALL
chemical bonds form is to:
fill the inner orbitals of atoms with electrons, allowing greater stability
cause a transfer of the electrons that are not required by one or more elements
produce a more stable electron distribution for each atom or ion involved
make available more bonding electrons for "attachment" of additional elements
2
Use the following information to answer this question.
Identify the true statements.
I. Ionic bonds involve the sharing of electrons.
II. Ionic bonds involve the transfer of electrons.
III. Covalent bonds involve the sharing of electrons.
IV. Covalent bonds involve the transfer of electrons.
V. All bonds have characteristics of both ionic and covalent bonds.
The true statements are:
I, IV
I, IV, V
II, III, V
II, III
3
The compound containing bonds with the most ionic character is:
NaF(s)
HCl(g)
KCl(s)
Br
2
(l)
4
A solid has a very high melting point. This indicates that the substance must be
a metal
an ionic crystal
held together by very strong forces
a molecular crystal
5
Which of the choices below explains water's abnormally high boiling point?
ionic bonding
covalent bonding
metallic bonding
hydrogen bonding.
6
The force of attraction of the electrons of one atom for the protons of another atom in close proximity is which choice?
hydrogen bonding
London Dispersion forces
ionic bonding
covalent bonding.
7
A compound is composed of 80% carbon and 20% hydrogen. The compound's molecular mass is 30g/mol. Calculate the compound's molecular formula.
The correct chemical formula for this compound is:
C
4
H
12
C
2
H
6
CH
4
C
2
H
5
8
A triple covalent bond
joins 3 atoms
results in a triatomic molecule
contains 6 electrons
occurs only in ionic crystals.
9
Which one of the following compounds has the most polar covalent bond?
carbon tetrachloride
hydrogen fluoride
water
boron tribromide
10
The best example of a molecular solid in which the intermolecular bonding is only van der Waals forces is
potassium iodide
carbon dioxide
hydrogen sulfide
ammonia
11
The bonds that involve positive particles in a "sea" of mobile electrons are referred to as
ionic bonds
metallic bonds
covalent bonds
hydrogen bonds
12
Diamond is an example of a(n)
covalent crystal
ionic crystal
molecule
metal