Unit 4 Quiz 2

25 July 2022
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question
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 attractive forces between molecules. The sharing of electrons results in attractive forces between molecules.
answer
The transfer of electrons forms strong bonds between ions.
question
Which statement describes a step in the formation of an ionic bond? An attraction occurs between two ions that have the same charge. A metal atom forms a cation, and a nonmetal atom forms an anion. A more electronegative atom transfers electrons to a less electronegative atom. A metal pulls electrons from another metal and produces a force of attraction.
answer
A metal atom forms a cation, and a nonmetal atom forms an anion.
question
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
answer
a force that holds two oppositely charged ions together
question
Which property best indicates that a compound contains an ionic bond? It is insoluble in water. It can be easily flattened. It has a low boiling point. It conducts electricity when molten.
answer
It conducts electricity when molten.
question
Which statement indicates that a substance may be an ionic compound? It has a low melting point. It is made up of molecules. It can be flattened by a force. It is made up of a crystal lattice.
answer
It is made up of a crystal lattice.
question
Which chemical species can easily form an ionic bond with a cation? Sr Ne NH4+ PO43-
answer
PO43-
question
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.
answer
They are made up of particles that are arranged in a repeating pattern.
question
Which pair of ions can form an ionic bond with each other and why? Cumc006-1.jpg and Agmc006-2.jpg; They are both metal ions. Smc006-3.jpg and Omc006-4.jpg; They have like charges. Brmc006-5.jpg and Atmc006-6.jpg; They are both halogen ions. Limc006-7.jpg and Brmc006-8.jpg; They have unlike charges.
answer
Limc006-7.jpg and Brmc006-8.jpg; They have unlike charges.
question
Which pair of elements will form an ionic bond? N and O K and Br C and Cl Fe and Ni
answer
K and Br
question
Which 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.
answer
The lattice energy increases as cations get smaller, as shown by LiF and KF.