Chromium Compounds and Ionic Charges

The video tutorial explains how to name the compound CrO as an ionic compound. It begins by identifying chromium and oxygen from the periodic table. The tutorial then describes how to form chromium oxide by replacing the ending with 'ide'. It further explains the charges of chromium and oxygen, leading to the final name, chromium(II) oxide, by considering the ionic charges and using Roman numerals.

What type of compound is CrO classified as?

• Metallic compound

• Covalent compound

• Ionic compound

• Molecular compound

Which element is the metal in CrO?

• Carbon

• Copper

• Oxygen

• Chromium

What suffix is used when naming the non-metal in an ionic compound?

• ite

• ate

• ide

• ous

Why can chromium have different charges?

• It is a transition metal

• It is an alkali metal

• It is a noble gas

• It is a non-metal

What is the ionic charge of oxygen in CrO?

• 1-

• 2+

• 1+

• 2-

What is the correct Roman numeral for chromium in CrO?

• IV

• I

• II

• III

What is the full name of CrO?

• Chromium oxide

• Chromium(II) oxide

• Chromium(III) oxide

• Chromium(IV) oxide