Naming and Writing Ionic Compounds

Which of the following is the metallic ion in iron (III) oxide?

• Fe³

• Fe²

• O^-2

• O^-1

A chemical formula includes the symbols of the elements in the compounds and subscripts that indicate:

• atomic mass of each element.

• number of atoms or ions of each element that are combined in the compounds.

• formula mass.

• charges on the elements or ions.

The formula for carbon dioxide, CO₂, can represent:

• one molecule of carbon dioxide.

• the combination of one atom of carbon and two atoms of oxygen.

• A and B are correct

• A and B are incorrect

Tags

NGSS.MS-PS1-1

How many valence electrons does phosphorus have?

• 3

• 4

• 5

• 6

Tags

NGSS.HS-PS1-1

What is the formula for tin (IV) oxide?

• Tn₄O₂

• SnO

• TnO₂

• SnO₂

Tags

NGSS.HS-PS1-2

Name the following compound: Li₃P

• lithium (I) phosphide

• lithium phosphide

• lithium phosphorus

• lithium (II) phosphide

Tags

NGSS.HS-PS1-1

Name the following compound: Fe₂O₃

• iron (II) oxygen

• iron (II) oxide

• iron (III) oxygen

• iron (III) oxide

Which of the following is a possible compound from magnesium (+2) and fluorine (-1)?

• MgF

• Mg₂F

• MgF₂

• Mg₃F₂

Tags

NGSS.MS-PS1-1

Which of the following are transition metals?

• Fe

• Mg

• Au

• Cu

• Li

Name the following compound: AuO

• gold (III) oxide

• gold (I) oxide

• gold (II) oxide

• gold oxide