Answers FPS Conceptual Science B - CRIonic Bonding

Covalent Bonding Answers

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Which statement best describes how an ionic bond forms?

The transfer of electrons forms strong bonds between ions.

The sharing of electrons forms strong bonds between ions.

The transfer of electrons results in repulsive forces between molecules.

The sharing of electrons results in attractive forces between molecules.

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Which pair of elements will form an ionic bond?

N and O

K and Br

C and Cl

Fe and Ni

The diagram below shows the atoms involved in forming table salt.Which statement best describes what happens next?

Sodium becomes an anion by losing an electron to chlorine.

Chlorine becomes a cation by losing an electron to sodium.

Sodium becomes a cation by gaining an electron from chlorine.

Chlorine becomes an anion by gaining an electron from sodium.

Which of these best describes an ionic bond?

a force that keeps two large molecules together

an attraction that occurs between two nonmetals

a force that holds two oppositely charged ions together

an electromagnetic attraction that occurs between two metals

What leads to the formation of an ionic bond with Hg2+?

the attraction of a noble gas

the attraction of an NH4+ ion

the attraction of a group 1 element

the attraction of an SO42– ion

Which statement is true about ionic compounds?

They are made up of many large molecules that are bonded together.

They are made up of atoms of only one type of element.

They are made up of particles that are arranged in a repeating pattern.

They are made up of a random ratio of elements that are bonded together.

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?

The lattice energy increases as cations get smaller, as shown by LiF and KF.

The lattice energy increases as the cations get larger, as shown by LiF and LiCl.

The lattice energy decreases as cations get smaller, as shown by NaCl and NaF.

The lattice energy decreases as the cations get smaller, as shown by NaF and KF.

Which property is best to use when determining the strength of an ionic bond in a solid?

lattice energy

conductivity

hardness

solubility

Each model shows bonding between a pair of atoms.Model A Model BWhich statement best explains how the models differ?

Model A shows the formation of ions, and model B does not show the formation of ions.

Model A does not show the formation of ions, and model B shows the sharing of electrons.

Model A shows the sharing of electrons, and model B shows the formation of ions.

Model A shows the transfer of an electron, and model B shows the sharing of electrons.

Which statement is true about a polyatomic ion?

It forms metallic bonds with other ions.

It forms covalent bonds with other ions.

It is made of atoms that are covalently bonded together.

It has a charge that is distributed over only part of the ion.

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