ERHS Chem CK-12 Chapter 6 - Ionic Compounds

What is the correct formula for the ionic compound lithium oxide?

• LiO

• Li₂O

• LiO₂

• Li₂O₂

Tags

NGSS.MS-PS1-1

The correct name of the ionic compound Mg₃N₂ is:

• manganese nitride

• magnesium nitride

• magnesium nitrogen

• trimagnesium dinitride

What is the chemical formula for the ionic compound magnesium chloride?

• MgCl

• Mg₂Cl

• MgCl₂

• Mg(ClO₃)₂

In the compound Cobalt (III) Chloride, the Roman numeral "III" represents:

• There are 3 cobalt atoms in the formula for this compound.

• The chloride ion has a -3 charge.

• The cobalt ion has a +3 charge.

• The cobalt ion has a -3 charge.

What is the correct name for the compound CrN? (Hint: this contains a transition metal)

• Chromium nitride

• Chromium (I) nitride

• Chromium (III) nitride

• Chromium nitride (III)

The charge or oxidation number for iron ion in Fe₂O₃ is:

• +2

• +3

• +1

• -2

Tags

NGSS.MS-PS1-1

What is the chemical formula for the ionic compound iron (II) carbonate?

• Fe₂CO₃

• FeCO₃

• Fe₂CO₂

• FeCO₄

Tags

NGSS.MS-PS1-1

Cations are _______ that form ____________ ions and __________ electrons.

• nonmetals, positive, lose
• nonmetals, negative, gain
• metals, positive, gain
• metals, positive, lose

Anions are _______ that form ____________ ions and __________ electrons.

• nonmetals, positive, lose
• nonmetals, negative, gain
• metals, positive, gain
• metals, positive, lose

What is the charge a sodium ion has?

• +2
• +1
• -1
• -2