00432    a2200169   4500082001500000100002500015245003900040250001200079260003700091300002100128650002300149650002100172650002400193650001000217650002100227653001400248  a540bM844c  aMortimer, Charles E.  aChemistry: ba conceptual approach  a4th ed.  aNew YorkbD. Van. Nostrandc1979  axiv,815p. illus.  aLiquids and solids  aElectrochemistry  aOxygen and hydrogen  aGases  aAtomic structure  aChemistry