Nickel(II) Hydroxide and Hydroxide Ions

The video tutorial explains how to write the chemical formula for Nickel(II) Hydroxide. It begins by identifying nickel as a transition metal with a 2+ charge and introduces hydroxide as a polyatomic ion with a 1- charge. The tutorial then demonstrates how to balance these charges to achieve a net charge of zero, resulting in the formula Ni(OH)2. The video concludes with a summary of the process.

What is the charge of nickel in Nickel(II) Hydroxide?

• 1+

• 0

• 2+

• 3+

Which of the following is a polyatomic ion?

• H

• OH

• O

• Ni

What is the charge of the hydroxide ion?

• 1+

• 2+

• 1-

• 2-

How many hydroxide ions are needed to balance the charge of one nickel ion in Nickel(II) Hydroxide?

• Two

• Four

• One

• Three

What is the correct formula for Nickel(II) Hydroxide?

• NiOH

• Ni(OH)2

• Ni2OH

• NiO2H