Manganese and Carbonate Compounds

The video tutorial explains how to name the compound MnCO3. It begins by identifying manganese as a transition metal and CO3 as a polyatomic ion, specifically the carbonate ion. The process involves writing the name of the metal as it appears on the periodic table, followed by the name of the polyatomic ion. Since manganese is a transition metal, the charge must be considered. The carbonate ion has a charge of 2-, so manganese must have a charge of 2+ to balance the compound. The final name is manganese II carbonate, with the Roman numeral indicating the charge of the manganese ion.

What type of metal is manganese in MnCO3?

• Alkaline earth metal

• Noble gas

• Transition metal

• Alkali metal

Which of the following is a characteristic of transition metals like manganese?

• They are gases at room temperature

• They can have multiple oxidation states

• They are non-conductive

• They have a fixed oxidation state

What is the name of the polyatomic ion CO3?

• Sulfate

• Phosphate

• Carbonate

• Nitrate

What is the charge of the carbonate ion in MnCO3?

• 1-

• 2-

• 3-

• 2+

How do the charges of manganese and carbonate balance in MnCO3?

• Manganese is 3+ and carbonate is 3-

• Manganese is 1+ and carbonate is 1-

• Manganese is 4+ and carbonate is 4-

• Manganese is 2+ and carbonate is 2-

Why is it necessary to use Roman numerals in the name of MnCO3?

• To show the charge of the polyatomic ion

• To specify the charge of the transition metal

• To denote the molecular weight

• To indicate the number of atoms

What is the correct name for MnCO3?

• Manganese carbonate

• Manganese II carbonate

• Manganese IV carbonate

• Manganese III carbonate