Which of the following is the correct formula for cobalt(III)bromide? A) CoBr B) CoBr₃ C) Co₂Br₃ D) Co₃Br₂ E) Co₃Br

Name: Which of the following is the correct formula for cobalt(III)bromide? A) CoBr B) CoBr 3 C) Co 2 Br 3 D) Co 3 Br 2 E) Co 3 Br
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Question

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Cobalt(III) indicates a +3 oxidation state for cobalt. Bromide has a -1 charge, so three bromide ions are needed to balance the +3 charge of one cobalt ion, resulting in the formula CoBr₃.

Which of the Following Is the Correct Formula for Cobalt(III)bromide