CHE K121 Lecture Notes - Lecture 11: Lead, Oxidation State, Disproportionation
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K + = + 1 , mg2+ = + 2 , s2 = 2: fluorine is either 0 or -1, oxygen is usually -2; but can be -1 (peroxide ion), and -1/2 (superoxide ion) Wednesday, october 3, 2018: hydrogen is usually +1 when combined ; however -1 when bonded to a metal ( " Pcl3; cl = 1 an d p = + 3. Displacement reactions: general equation: a (metal) + bx (acid/salt) " Ax (salt) + b (h2 or a metal: ex: oxidation of metals by acids: Mg0(s) + 2h +1cl 1(aq) mg+2cl 1. Mg(s) + 2h +(aq) + 2cl (aq) mg2+(aq) + 2cl (aq) + h2(g) Mg(s) + 2h +(aq) mg2+(aq) + h2(g: the substance undergoing oxidation is called the reducing agent; the substance undergoing reduction is called the oxidizing agent (oxidizer) "2: all metals above hydrogen will oxidize in an acid and give o h2 gas,
