AnswersChemistryChemical Bonding

Practice Test Answers

12 verified answers
1
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Which statement about hydrogen bonds is true?

A
They are the weakest of the intermolecular forces.
B
They help water striders walk on water by creating surface tension.
C
They are much stronger than intramolecular forces.
D
They are the only force that allows a gecko to climb up glass.
2
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Which of the following most likely requires intermolecular forces?

A
a rock maintaining its solid shape
B
a koala using claws to hold onto a tree
C
a spider walking on the bottom of a leaf
D
a piece of fruit falling from a branch to the ground
3

Which statement is true about a polyatomic ion?

A
It is made of atoms that are covalently bonded together.
B
It forms metallic bonds with other ions.
C
It forms covalent bonds with other ions.
D
It has a charge that is distributed over only part of the ion.
4

The IUPAC name for NF sub 3 should have which of these?

A
the Roman numeral (III) after fluoride
B
the prefix “tri” before fluoride
C
the prefix “tri” before nitrogen
D
the Roman numeral (III) after nitrogen
5

Which best describes why NH sub 4 raised to the plus power can form an ionic bond with Cl raised to the negative power ?

A
Its positive charge is attracted to the negative charge of Cl raised to the negative power .
B
Its outermost shell gains one or more electrons from Cl raised to the negative power .
C
It has a negative charge that is spread over the entire ion.
D
It has a nitrogen atom that is strongly attracted to Cl raised to the negative power .
6

What is another name for the molecular orbital theory of bonding in metals?

A
ionic bond theory
B
electron bond theory
C
covalent bond theory
D
band theory
7

How many valence electrons are available for bonding in bromine Br ?

A
one
B
two
C
five
D
seven
8

What is the ratio of Fe raised to the 3 plus power ions to cap o raised to the 2 minus power ions in a neutral compound?

A
ratio of 3 to 2
B
ratio of 2 to 1
C
ratio of 2 to 3
D
ratio of 1 to 2
9

Based on its location in the periodic table, what can most likely be predicted about sulfur?

A
It has four nonbonding electrons.
B
It has six valence electrons available for bonding.
C
It has six nonbonding electrons.
D
It has four valence electrons available for bonding.
10

What is the ratio of sodium ions to bromide ions in neutral sodium bromide?

A
ratio of 3 to 2
B
ratio of 2 to 3
C
ratio of 1 to 1
D
ratio of 2 to 1
11

What does it mean that valence electrons in a metal are delocalized?

A
The valence electrons move from outer orbitals to inner orbitals of each atom.
B
The valence electrons move out of the orbitals and go into the air.
C
The valence electrons move between atoms in shared orbitals.
D
The valence electrons move from inner orbitals to outer orbitals of each atom.
12

Which is the IUPAC name of cap o sub 3 ?

A
monoxide
B
oxygen
C
dioxide
D
trioxygen

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