Which one of the following is not a balanced equation? explain why.
a. c3h8 (g) + o2 (g) → co2 (g) + h2o (g)
b. c3h8 (g) + 5o2 (g) → 3co2 (g) + 4h2o (g)
c.2mg (s) + o2 (g) → 2mgo (s)
d.4na (s) + o2 (g) → 2na2o (s)

Chromium(iii) sulfate is a transition metal compound containing the metal chromium and the polyatomic ion sulfate. the oxidation state of chromium in this compound is , and the chemical formula of the compound is ( ) . reset next