Manganese Phosphate and Ionic Charges

The video tutorial explains how to write the formula for manganese(III) phosphate. It begins by identifying the element symbol for manganese and its charge, followed by the formula for the phosphate ion, which is a polyatomic ion. The tutorial emphasizes the importance of balancing the charges to achieve a net charge of zero. Finally, it discusses how to name the compound based on its formula.

What does the Roman numeral III indicate in manganese(III) phosphate?

• The number of manganese atoms

• The charge of the manganese ion

• The number of phosphate ions

• The atomic number of manganese

Which of the following is true about the phosphate ion?

• It is found on the periodic table

• It is a polyatomic ion

• It has a positive charge

• It is a monatomic ion

What is the charge of the phosphate ion in manganese(III) phosphate?

• 2+

• 3-

• 2-

• 3+

Why do the charges of manganese and phosphate need to balance?

• To make the compound soluble

• To achieve a net charge of zero

• To increase the compound's stability

• To make the compound reactive

What is the formula for manganese(III) phosphate?

• MnPO4

• Mn(PO4)3

• Mn3(PO4)2

• Mn2(PO4)3

How would you name the compound with the formula Mn2(PO4)3?

• Manganese phosphate

• Manganese(II) phosphate

• Manganese(IV) phosphate

• Manganese(III) phosphate