Question

select the correct answer.
what is the chemical name of the compound represented by the formula ni₂o₃? use the list of polyatomic ions and the periodic table to help you answer.
a. nickel oxide
b. nickel(i) oxide
c. nickel(iii) oxide
d. nickel(vi) oxide

Explanation:

Step1: Determine the charge of oxygen

Oxygen in oxides has a charge of \(O^{2 -}\).

Step2: Calculate the charge of nickel

In \(Ni_2O_3\), let the charge of nickel be \(x\). Using the formula for charge balance in a compound: \(2x+3\times(- 2)=0\).

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Answer:

B. nickel(III) oxide