Nickel Compounds and Nitrate Ions

This video tutorial explains how to write the chemical formula for Nickel(III) Nitrate. It begins by identifying the element symbol for Nickel and its charge as a transition metal. The video then introduces Nitrate as a polyatomic ion with a 1- charge, emphasizing the importance of memorizing this ion. The tutorial demonstrates how to balance the charges between Nickel and Nitrate to form a neutral compound, resulting in the formula Ni(NO3)3. The video concludes with a summary of the steps taken to derive the formula.

What is the element symbol for nickel?

• Nc

• Nk

• Nl

• Ni

What type of ion is nitrate?

• Monatomic ion

• Polyatomic ion

• Cation

• Anion

What is the ionic charge of the nitrate ion?

• 2-

• 3+

• 1-

• 1+

How many nitrate ions are needed to balance the charge of one nickel 3 ion?

• One

• Two

• Three

• Four

Why do we use parentheses around the nitrate in the formula for nickel 3 nitrate?

• To indicate multiple ions

• To show it is a polyatomic ion

• To separate it from other elements

• To highlight its charge

What is the final formula for nickel 3 nitrate?

• Ni3(NO3)3

• Ni3(NO3)2

• Ni(NO3)3

• Ni(NO3)2

What is the net charge of the compound nickel 3 nitrate?

• 1+

• 0

• 3-

• 2+