Chromium Phosphate Compound Concepts

The video tutorial explains how to name the compound CR PO4. It begins by identifying CR as chromium, a transition metal, and PO4 as a polyatomic ion, phosphate. The tutorial then calculates the charge of chromium, which is 6+, to balance the 3- charge of two phosphate ions. The final name of the compound is determined to be chromium 6 phosphate.

What type of compound is CRPO4?

• Metallic compound

• Ionic compound

• Organic compound

• Covalent compound

Which of the following is a polyatomic ion in CRPO4?

• NO3

• SO4

• CO3

• PO4

What is the name of the metal in CRPO4?

• Cobalt

• Calcium

• Chromium

• Copper

What is the charge of the phosphate ion in CRPO4?

• 2-

• 3-

• 4-

• 1-

How many phosphate ions are needed to balance the charge of chromium in CRPO4?

• Four

• Two

• One

• Three

What is the Roman numeral used to indicate the charge of chromium in CRPO4?

• VII

• IV

• V

• VI

What is the full name of the compound CRPO4?

• Chromium Phosphate

• Chromium 4 Phosphate

• Chromium 6 Phosphate

• Chromium 3 Phosphate

Why is it necessary to include a Roman numeral in the name of CRPO4?

• To denote the color of the compound

• To specify the type of bond

• To show the charge of the metal

• To indicate the number of atoms