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[CoCl2 {(O = C(NH2)2}2}]

1. [CoCl2 {(O = C(NH2)2}2}]
2. [CoCl2 {(O = C(NH2)2}3}]
3. [CoCl2 {(O = C(NH2)2}4}]
4. [CoCl2 {(O = C(NH2)2}5}]

Correct answer: [CoCl2 {(O = C(NH2)2}2}]

Solution

The given complex is already balanced and correctly written as [CoCl2 {(O = C(NH2)2}2}], where two urea molecules act as ligands. No additional ligands are required.

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