Understanding Chromium Chloride Compounds

The video tutorial explains how to name the compound CrCl2. It starts by identifying CrCl2 as a binary ionic compound, consisting of a metal (chromium) and a non-metal (chlorine). The tutorial details the process of naming the metal and non-metal according to the periodic table, replacing the non-metal's ending with 'ide'. It then discusses determining the ionic charges of the elements, particularly focusing on chromium as a transition metal. Finally, the video concludes with writing the full name of the compound, 'chromium II chloride', using a Roman numeral to indicate the charge of the chromium ion.

What type of compound is CrCl2 classified as?

• Molecular compound

• Binary ionic compound

• Covalent compound

• Ternary compound

What is the name of the metal in CrCl2 as it appears on the periodic table?

• Copper

• Chlorine

• Carbon

• Chromium

How is the name of the non-metal in CrCl2 modified?

• Add 'ium' to the end

• Add 'ide' to the end

• Add 'ate' to the end

• Add 'ite' to the end

Why can't the charge of chromium in CrCl2 be determined just by looking at it?

• Chromium is a transition metal

• Chromium is a non-metal

• Chromium is a halogen

• Chromium is a noble gas

What is the ionic charge of each chlorine atom in CrCl2?

• 1-

• 2-

• 2+

• 1+

What is the total negative charge contributed by the chlorine atoms in CrCl2?

• 2-

• 3-

• 4-

• 1-

What Roman numeral is used to indicate the charge of chromium in CrCl2?

• I

• II

• IV

• III

What is the full name of CrCl2?

• Chromium chloride

• Chromium IV chloride

• Chromium II chloride

• Chromium III chloride