Answers26-27 CFISD TX-Chemistry A CRTypes of Chemical Bonds

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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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)
3

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.
4

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.
5

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.
6

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
7

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.
8

Which type of substances have chemical bonds that are not directional and valence electrons that move freely between the atoms?

A
halogens
B
nonmetals
C
metals
D
salts
9

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)
10

Which statement is generally true about CaCl2?

A
It has only metallic bonds between the atoms.
B
It has only covalent bonds between the atoms.
C
Its bonds are formed by large differences in electronegativity.
D
Its bonds are formed by small differences in electronegativity.

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