Nickel and Carbonate Compounds

The video tutorial explains how to write the formula for nickel 2 carbonate. It begins by identifying nickel as a transition metal with a 2+ charge. The carbonate ion, CO3 2-, is introduced as a polyatomic ion. The tutorial then demonstrates how to combine these ions to form an ionic compound with a net charge of zero, resulting in the formula NiCO3.

What is the charge of nickel in nickel 2 carbonate?

• 1+

• 0

• 2+

• 3+

Which of the following is a polyatomic ion?

• H2O

• CO3 2-

• O2

• Ni

What is the formula for the carbonate ion?

• CO2

• C2O4

• C3O2

• CO3 2-

How do the charges of nickel and carbonate combine in nickel 2 carbonate?

• They both have a positive charge.

• They form a compound with a net positive charge.

• They both have a negative charge.

• They cancel each other out to form a neutral compound.

What is the correct formula for nickel 2 carbonate?

• Ni2CO3

• NiCO3

• Ni(CO3)2

• NiCO2