Covalent Bonding Answers
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Which pair of elements will form an ionic bond?
A
N and OB
K and BrC
C and ClD
Fe and Ni2
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Which statement best describes how an ionic bond forms?
A
The transfer of electrons forms strong bonds between ions.B
The sharing of electrons forms strong bonds between ions.C
The transfer of electrons results in repulsive forces between molecules.D
The sharing of electrons results in attractive forces between molecules.3
Which statement is true about ionic compounds?
A
They are made up of many large molecules that are bonded together.B
They are made up of atoms of only one type of element.C
They are made up of particles that are arranged in a repeating pattern.D
They are made up of a random ratio of elements that are bonded together.4
Which statement describes a step in the formation of an ionic bond?
A
An attraction occurs between two ions that have the same charge.B
A metal atom forms a cation, and a nonmetal atom forms an anion.C
A more electronegative atom transfers electrons to a less electronegative atom.D
A metal pulls electrons from another metal and produces a force of attraction.5
What leads to the formation of an ionic bond with Hg2+?
A
the attraction of a noble gasB
the attraction of an NH4+ ionC
the attraction of a group 1 elementD
the attraction of an SO42– ion6
Which statement is true about a polyatomic ion?
A
It forms metallic bonds with other ions.B
It forms covalent bonds with other ions.C
It is made of atoms that are covalently bonded together.D
It has a charge that is distributed over only part of the ion.7
Which property best indicates that a compound contains an ionic bond?
A
It is insoluble in water.B
It can be easily flattened.C
It has a low boiling point.D
It conducts electricity when molten.8
The table lists the lattice energies of some compounds.CompoundLattice Energy (kJ/mol)LiF –1,036LiCl –853NaF –923KF –821NaCl –786Which statement about crystal lattice energy is best supported by the information in the table?
A
The lattice energy increases as cations get smaller, as shown by LiF and KF.B
The lattice energy increases as the cations get larger, as shown by LiF and LiCl.C
The lattice energy decreases as cations get smaller, as shown by NaCl and NaF.D
The lattice energy decreases as the cations get smaller, as shown by NaF and KF.9
Which statement correctly describes the phosphate ion, ?
A
It is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion.B
It is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom.C
It is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion.D
It is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.10
Which of these best describes an ionic bond?
A
a force that keeps two large molecules togetherB
an attraction that occurs between two nonmetalsC
a force that holds two oppositely charged ions togetherD
an electromagnetic attraction that occurs between two metalsDid you find these answers helpful?
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