Potassium and Permanganate Concepts

The video tutorial explains how to write the formula for potassium permanganate. It begins by identifying potassium on the periodic table with the symbol 'K'. Permanganate, a polyatomic ion not found on the periodic table, is identified as 'MnO4-'. The tutorial explains that potassium has a charge of +1, while permanganate has a charge of -1. These charges must balance to form a neutral ionic compound, resulting in the formula KMnO4. The video concludes with a summary of the process.

What is the symbol for potassium on the periodic table?

• Pt

• Po

• K

• P

What is the charge of the permanganate ion?

• 3+

• 1-

• 2-

• 1+

Which of the following is a polyatomic ion?

• K

• O2

• MnO4-

• H2O

What is the charge of potassium in potassium permanganate?

• 1+

• 2+

• 3-

• 1-

What is the correct formula for potassium permanganate?

• KMnO2

• KMnO3

• KMnO4

• K2MnO4