Question

Provide the formulas of the cation and anion in the ionic compound, Co(HCO_3)_2.

A. Cation: Co, Anion: (HCO_3)_2
B. Cation: Co(HCO_3)_2, Anion: None
C. Cation: HCO_3, Anion: Co_2
D. Cation: Co, Anion: HCO_3

Answer 1

The cation in Co(HCO3)2 is Co, and the anion is HCO3, making 'D. Cation: Co, Anion: HCO3' the correct answer for the formulas of the cation and anion in the compound.

Step-by-step explanation:

The formulas of the cation and anion in the ionic compound Co(HCO3)2 are as follows:

• Cation: Co
• Anion: HCO3

Therefore, the correct answer is D. Cation: Co, Anion: HCO3. Cobalt (Co) forms the cation with a 2+ charge, and the bicarbonate (HCO3) is the anion. The compound has two bicarbonate ions to balance the 2+ charge of the cobalt cation, hence the subscript 2 after the bicarbonate in the formula.