Nickel Compounds and Acetate Ions

The video tutorial explains how to write the chemical formula for nickel 3 acetate. It begins by identifying nickel as a transition metal with a 3+ charge, indicated by the Roman numeral III. The acetate ion, a polyatomic ion, is introduced with its two common notations: CH3COO- and C2H3O2-. The tutorial emphasizes the importance of balancing charges to achieve a neutral compound, requiring three acetate ions to balance the 3+ charge of nickel. The final formula is presented as Ni(CH3COO)3, with a note on alternative notations.

What is the symbol for Nickel in the periodic table?

• Nl

• Nc

• Nk

• Ni

What charge does Nickel have in Nickel 3 Acetate?

• 4+

• 1+

• 2+

• 3+

What type of ion is acetate?

• Monatomic ion

• Polyatomic ion

• Cation

• Anion

Which of the following is a correct formula for the acetate ion?

• CH3COO-

• CH4COO-

• C2H4O2-

• C2H3O3-

How many acetate ions are needed to balance the charge of Nickel in Nickel 3 Acetate?

• 4

• 1

• 2

• 3

What is the net charge of Nickel 3 Acetate?

• 1+

• 0

• 2-

• 3+

Why do the charges in Nickel 3 Acetate need to add up to zero?

• Because it is a cation

• Because it is an anion

• Because it is a neutral compound

• Because it is a polyatomic ion

What is the charge of each acetate ion?

• 2-

• 1+

• 1-

• 2+

What is the formula for Nickel 3 Acetate?

• Ni(CH3COO)2

• Ni(CH3COO)3

• NiC2H3O2

• NiC2H3O3

Which of the following is an alternative way to write the formula for Nickel 3 Acetate?

• NiC2H3O2

• NiC2H4O2

• NiC3H3O2

• NiC2H3O3