11. A researcher has found that they can form 3 different compounds between zinc and sulfate. One compound has a ratio of 2 zinc to 1 sulfate; the other has a ratio of 1 zinc to
2 sulfate, and the last compound has a ratio of 2 zinc to 5 sulfate. Write down the
oxidation number of zinc, chemical formula, and name of the compound

What is the number of atoms in 3.54 mol s

Which statement is best described as a atom

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.