Homework Quiz- Ionic Bonds and Ionic Compounds

What is the term for the electrostatic force that holds oppositely charged particles together in an ionic compound?

• covalent bond

• polar bond

• ionic bond

• lattice bond

Tags

NGSS.HS-PS2-4

Binary ionic compounds ______.

• contain a nonmetallic cation and a nonmetallic anion

• may contain three nonmetals.

• contain only two different elements.

• contain a metallic cation and a metallic anion.

Select the statement about the formation of ionic bonds in sodium chloride are true?

• A sodium atom transfers two valence electron to a chlorine atom.

• The oppositely charged ions attract each other in an ionic bond.

• A chlorine atom accepts a valence electron from another chlorine atom.

• The chlorine atoms become positive ions.

• The sodium atoms become negative ions.

Tags

NGSS.HS-PS1-2

Which physical properties are typical of ionic compounds?

• do not conduct electricity as liquids.

• have high melting and conduct electricity when dissolved

• Have low melting points and do not conduct electricity when dissolved.

• Only conducts electricity as solid

• commonly gasses at room temperature.

Tags

NGSS.HS-PS1-3

An ionic compound whose aqueous solution conducts an electric current is called a(n)___________

What is the energy required to separate 1 mol of the ions of an ionic compound?

• the lattice energy

• the activation energy

• the bond energy

• the decomposition energy

Which of the following best describes a reason that ionic compounds tend to be brittle?

• A force strong enough to push ions out of alignment results in like-charged ions being next to each other.

• There are transition metals incorporated into the crystal lattices.

• The forces that hold ions together in a crystal lattice are not very strong and are easily overcome.

• Ionic compounds have very high melting points.

Tags

NGSS.HS-PS1-3

What are compounds that contain ionic bonds called?

• always binary compounds

• always ternary compounds

• covalent compounds

• ionic compounds

In terms of energy change, the formation of ionic compounds from positive ions and negative ions ______.

• is always exothermic

• is always endothermic

• may be exothermic or endothermic

Tags

NGSS.HS-PS1-4

Select the ionic compound(s) that is/are binary?

• sodium nitrate, NaNO₃

• magnesium oxide, MgO

• magnesium chloride, Mg(ClO₃)₂

• chlorine Cl₂