Answers LA-Physical Science AIonic Bonds

Ionic Bonds Answers

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David observed properties of four different compounds, only one of which is an ionic compound. His observations are shown in the chart.

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Ionic compounds form

crystal structures.

molecular structures.

pure elements.

neutral elements.

This chart shows characteristics of three different types of atoms.

Atom X will donate electrons to Atom Y.

Atom X will accept electrons from Atom Y.

Atom Y will accept electrons from Atom Z.

Atom Z will donate electrons to Atom X.

What will most likely occur if sulfur forms an ionic bond with another element? (Click on the icon for the periodic table to view sulfur)

Sulfur will accept electrons.

Sulfur will donate electrons.

Sulfur will become a positive ion.

Sulfur will become less stable.

Which product relies on the ability of ionic compounds to conduct electricity?

paper

batteries

soap

glazed pottery

Which shows the correct order of steps during the formation of an ionic bond?

Ions are attracted to each other → Electrons are transferred → An ionic compound forms

An ionic compound forms → Ions are attracted to each other → Electrons are transferred

Electrons are transferred → Ions form → Ions are attracted to each other

Ions form → Electrons are transferred → Ions are attracted to each other

Alice added sodium chloride to water and stirred the water for several minutes. Alice is most likely trying to demonstrate that ionic compounds

are hard.

can dissolve.

are clear.

can melt.

What is formed when polyatomic ions bond with other ions?

ionic compounds

neutral compounds

ionic elements

neutral elements

Chalk is an ionic compound. Which is a property of all ionic compounds that makes chalk particularly useful for writing on a chalkboard?

a high melting point

hardness and brittleness

inability to dissolve in water

a multicolored appearance

Which is an example of a polyatomic ion?

CO3-

Mg+

Ne+ -

Iodine and potassium form an ionic bond. Iodine has seven electrons in its outer shell, and potassium has one electron in its outer shell. Which conclusion is best supported by this information?

Iodine is a noble gas.

Potassium is a nonmetal.

Iodine becomes an ion with a negative 1 charge.

Potassium becomes an ion with a positive 7 charge.

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