Chloride and Mercury Compounds

The video tutorial explains how to name the compound HgCl2. It starts by identifying mercury (Hg) as a metal and chlorine (Cl) as a nonmetal, indicating that HgCl2 is an ionic compound. The name 'mercury chloride' is derived by writing the names as they appear on the periodic table, modifying 'chlorine' to 'chloride'. Since mercury is a transition metal, it can have different charges. In this case, mercury has a 2+ charge to balance the two 1- charges from chlorine, resulting in a net charge of zero. Therefore, the compound is named 'mercury(II) chloride', with the Roman numeral indicating the charge of mercury.

What is the first step in naming HgCl2 as an ionic compound?

• Calculate the net charge of the compound

• Determine the number of chlorine atoms

• Write the name of mercury as it appears on the periodic table

• Identify the charge of mercury

Why is chlorine's name changed to chloride in the compound HgCl2?

• Because it is a metal

• To reflect its role as a nonmetal in an ionic compound

• To show it has a positive charge

• To indicate it is part of a covalent bond

What is the charge of chlorine in the compound HgCl2?

• 2 minus

• 1 plus

• 1 minus

• 2 plus

How is the charge of mercury determined in HgCl2?

• By the number of mercury atoms

• By the position of mercury in the periodic table

• By the charge of chlorine

• By the total number of atoms in the compound

What does the Roman numeral 'II' indicate in the name mercury(II) chloride?

• The total charge of the compound

• The charge of mercury

• The number of chlorine atoms

• The number of mercury atoms

What is the full name of the compound HgCl2?

• Mercury chlorine

• Mercury dichloride

• Mercury(II) chloride

• Mercury chloride