AnswersISA CA-Chemistry ATypes of Chemical Bonds

3.1 Types of Chemical Bonds Answers

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1
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How is electronegativity related to covalent bonding?

A
Atoms must have similar electronegativities in order to share electrons in a covalent bond.
B
Atoms must have very different electronegativities in order to transfer electrons in a covalent bond.
C
Atoms must have similar electronegativities in order to transfer electrons in a covalent bond.
D
Atoms must have very different electronegativities in order to share electrons in a covalent bond.
2
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What will most likely happen when two bromine atoms bond together?

A
The atoms will become less stable.
B
An ionic bond will hold them together.
C
A covalent bond will hold them together.
D
A metallic bond will hold them together.
3

The table below shows the electronegativity values of various elements on the periodic table.ElectronegativitiesWhich pair of elements would form an ionic bond?

Question illustration
A
carbon (C) and oxygen (O)
B
strontium (Sr) and chlorine (Cl)
C
cesium (Cs) and germanium (Ge)
D
magnesium (Mg) and aluminum (Al)
4

Which statement describes how the bond between two oxygen atoms is formed?

A
by sharing valence electrons with many other atoms
B
by the repulsion between ions of like charges
C
by the attraction of two oppositely charged ions
D
by sharing valence electrons between the two atoms
5

The incomplete table below shows selected properties of compounds that have ionic, covalent, or metallic bonds.RowBondElectrical conductivityLikely property1IonicYesHigh melting point2?Yes?3?No?Which information would best fill the blanks in row 3?

A
metallic bond and low melting point
B
metallic bond and high melting point
C
covalent bond and low melting point
D
covalent bond and high melting point
6

Which statement describes the valence electrons in ionic bonds?

A
They are shared equally between two atoms.
B
They are shared unequally between two atoms.
C
They are shared among many atoms.
D
They are transferred from one atom to another.
7

Which of these is a property of a substance that is composed of atoms that are held together by metallic bonds?

A
It has a low melting point.
B
It can be flattened and bent.
C
It cannot be shaped into wires.
D
It does not conduct electricity.
8

Consider the location of barium, chlorine, iodine, and strontium on the periodic table.ElectronegativitiesWhich type of atom has the strongest attraction for electrons in bond formation?

Question illustration
A
barium (Ba)
B
chlorine (Cl)
C
iodine (I)
D
strontium (Sr)
9

Which statement best explains why a metal atom and a nonmetal atom are most likely to form an ionic bond?

A
Metal atoms have low ionization energy, and nonmetal atoms have high electronegativity, so electrons transfer easily from the nonmetal atom to the metal atom.
B
Metal atoms have low ionization energy, and nonmetal atoms have high electronegativity, so electrons transfer easily from the metal atom to the nonmetal atom.
C
Metal atoms have high ionization energy, and nonmetal atoms have low electronegativity, so electrons transfer easily from the nonmetal atom to the metal atom.
D
Metal atoms have high ionization energy, and nonmetal atoms have low electronegativity, so electrons transfer easily from the metal atom to the nonmetal atom.
10

Which of these is a typical property of a substance that is composed of atoms that are held together by covalent bonds?

A
It conducts electricity when in solid form.
B
It conducts electricity when in molten form.
C
It conducts electricity when it is dissolved in water.
D
It does not conduct electricity in any form.

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