Nickel(III) Oxide Charge and Formula

The video tutorial explains how to write the chemical formula for Nickel(III) Oxide. It begins by identifying the element symbols for Nickel and Oxygen, and discusses the importance of considering ionic charges. Nickel, a transition metal, has a 3+ charge, while Oxygen has a 2- charge. The criss-cross method is introduced to balance these charges, resulting in the formula Ni2O3. The tutorial concludes by verifying the formula through charge calculations, ensuring the compound is neutral.

What are the element symbols for nickel and oxygen?

• N and O2

• Ni and Ox

• N and O

• Ni and O

What is the charge of nickel in Nickel(III) Oxide?

• 2+

• 3+

• 1+

• 4+

What is the charge of oxygen in compounds?

• 0

• 2-

• 1-

• 3-

Which method is used to balance the charges in Nickel(III) Oxide?

• Balance method

• Charge swap method

• Criss-cross method

• Cross-link method

What is the formula for Nickel(III) Oxide?

• NiO

• Ni2O

• Ni2O3

• Ni3O2

How do the charges in Ni2O3 add up to zero?

• 6+ and 6- add to 0

• 4+ and 4- add to 0

• 3+ and 2- add to 1+

• 2+ and 3- add to 1-

Why is Nickel(III) Oxide considered a neutral compound?

• It is a liquid

• It is a gas

• It has equal positive and negative charges

• It has no ions