Lions undergo reduction, Olons undergo oxidation
11. AP ions are attracted to the
negative electrode on the
bottom, O2 ions are attracted to
the positive electrode on the top.
III. Electric current is added
IV. Oxygen and carbon from
graphite form carbon dioxide,
pure aluminum on the bottom is
collected
V. Bauxite is added to molten
cryolite in a tank with graphite
electrodes
A. I, II, II, IV, V
OB. I, II, III, V, IV
C. IV, V, III,
OD. V, III, IV

Which of the following shapes would represent a molecule with two bonded atoms and 3 lone pairs on only one of them , trigonal planar , bent , trigonal pyramidal , linear

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.