Drag the tiles to the correct boxes to complete the pairs. Chromium is a transition metal, and oxygen has an oxidation number of -2. Use this information to match each compound to its chemical
formula
chromium(VI) oxide
chromium(IV) oxide
chromium(Ill) oxide
chromium(II) oxide
Cro
Cro
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Cr₂O₃

What are the spectator ions in 2h+ + so42- + ca2+ + 2r → caso4 + 2h+ + 21?

How do you convert 4 mmol of bromobenzene to ml?

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.