Potassium and Hydroxide Ion Charges

The video tutorial explains how to write the chemical formula for potassium hydroxide. It begins by identifying potassium on the periodic table and recognizing its symbol 'K'. The hydroxide ion, 'OH', is not found on the periodic table, so it is identified from a table of common ions with a charge of -1. Potassium, being in group one, has a charge of +1. The tutorial demonstrates how these charges balance each other to form the neutral compound potassium hydroxide, KOH. The video concludes with a confirmation of the correct formula.

What is the element symbol for potassium as found on the periodic table?

• Po

• Pt

• K

• P

Where can you find the hydroxide ion and its charge?

• In a table of common ions

• On the periodic table

• In a chemistry textbook

• In a biology chart

What is the charge of the hydroxide ion?

• +2

• +1

• -1

• 0

Why is it important to know the charge of potassium in this context?

• Because it helps balance the ionic charges in the compound

• Because it affects the taste of the compound

• Because it changes the state of the compound

• Because it determines the color of the compound

What is the charge of potassium in the periodic table?

• -1

• +2

• +1

• 0

What is the net charge of potassium hydroxide when the charges are balanced?

• 0

• +2

• +1

• -1