EdrianaDavis80241 EdrianaDavis80241 25-02-2024 Chemistry contestada A chromate ion consists of four oxygen atoms bonded to a chromium atom. It has two extra electrons. What is the formula of this ion? a) Cr₄O₂⁻ b) CrO₄²⁺ c) CrO₄²⁻ d) Cr₂O₄⁺