Question

question 23
4 pts
what is the chemical formula for the binary compound of co3+ and o2- ions?
co2o4
co6o6
co2o3
co3o2
coo

Explanation:

Step1: Determine the charge balance

For a neutral compound, the sum of positive and negative charges must be zero. Let the number of \(Co^{3 +}\) ions be \(x\) and the number of \(O^{2-}\) ions be \(y\). Then \(3x-2y = 0\).

Step2: Find the smallest whole - number ratio

From \(3x = 2y\), when \(x = 2\) and \(y=3\) (by cross - multiplying \(x/y=2/3\)), the charge balance is achieved.

Answer:

\(Co_{2}O_{3}\)