Lead(IV) Hydroxide and Ionic Charges

The video tutorial explains how to write the chemical formula for lead(IV) hydroxide. It begins by identifying the symbols and charges of lead and hydroxide ions. The tutorial then uses the crisscross method to balance the charges and derive the correct formula. Finally, it verifies the formula by ensuring the net charge is zero, concluding with the correct formula: Pb(OH)₄.

What is the element symbol for lead?

• Pb

• Le

• Ld

• Pd

What is the ionic charge of hydroxide?

• 1+

• 2-

• 1-

• 2+

Why is it important to balance the charges in an ionic compound?

• To change the compound's color

• To ensure the compound is neutral

• To increase the compound's reactivity

• To make the compound more stable

What method is used to balance the charges in lead(IV) hydroxide?

• Multiplication method

• Addition method

• Crisscross method

• Substitution method

How many hydroxide ions are needed to balance the charge of one lead(IV) ion?

• 3

• 2

• 4

• 1

What is the total negative charge contributed by four hydroxide ions?

• 1-

• 4-

• 2-

• 3-

What is the net charge of the compound lead(IV) hydroxide?

• 1+

• 0

• 2-

• 4+

What is the correct chemical formula for lead(IV) hydroxide?

• PbOH

• Pb(OH)2

• Pb(OH)4

• PbO2H2

Who is the presenter of the video tutorial?

• Dr. D

• Dr. A

• Dr. C

• Dr. B