Ionic Compounds and Their Formulas

The video tutorial explains how to write the chemical formula for potassium chlorate. It begins by identifying potassium on the periodic table and explains that chlorate is a polyatomic ion not found on the table. The tutorial discusses the charges of potassium and chlorate, emphasizing the need for charge balance in ionic compounds. Finally, it demonstrates how to write and simplify the formula for potassium chlorate as KClO3.

What is the symbol for potassium on the periodic table?

• P

• K

• Pt

• Po

Where should you look to find the formula for chlorate?

• In a list of elements

• In a chemistry textbook

• In the periodic table

• In a table of common polyatomic ions

What is the charge of potassium in ionic compounds?

• 0

• +2

• +1

• -1

Why do the charges in an ionic compound need to balance?

• To make the compound stable

• To make the compound magnetic

• To make the compound colorful

• To make the compound dissolve in water

What is the final formula for potassium chlorate?

• KClO4

• KClO3

• KClO2

• KClO

What is the purpose of removing charges when writing the final formula?

• To add more elements

• To change the compound

• To make the formula more complex

• To simplify the formula