Manganese(IV) Chromate and Ions

The video tutorial explains how to write the formula for manganese chromate. It begins by identifying the element symbols and charges, highlighting the importance of recognizing polyatomic ions like chromate. The tutorial then demonstrates how to balance the charges to achieve a neutral compound and concludes with naming the compound using the correct nomenclature.

What does the Roman numeral IV indicate in manganese(IV) chromate?

• The number of manganese atoms

• The charge on the manganese ion

• The total charge of the compound

• The number of chromate ions

Which of the following is a polyatomic ion involved in manganese(IV) chromate?

• Mn

• CrO4

• O2

• H2O

How do the charges of manganese and chromate ions combine to form a neutral compound?

• The charges add up to a negative value

• The charges add up to zero

• The charges add up to a positive value

• The charges do not need to balance

What is the correct formula for manganese(IV) chromate?

• Mn(CrO4)2

• Mn2(CrO4)3

• Mn(CrO4)3

• MnCrO4

When given the formula Mn(CrO4)2, how do you determine the charge on manganese?

• By the color of the compound

• By counting the number of oxygen atoms

• By knowing the charge of the chromate ion

• By looking at the periodic table

Why is it important to use Roman numerals in the name of manganese(IV) chromate?

• To denote the compound's color

• To indicate the number of atoms

• To show the charge on the chromate ion

• To specify the charge on the manganese ion