Which is the balanced version of the half-reaction below that occurs in basic solution?
clo → cl
O A. CIO + H2O + 2e → Cl + 20H
B. ClO + H20 → Cl” + 20H-
C. CIO- + e → Cl-
D. 2Cl0- →2Cl-+ O2

As a part of an experiment a student burns propane to produce carbon dioxide and water she remembers that she must follow the law conservation of matter when writing a balanced chemical equation which of these equation adheres to the law of conservation of matter

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.

The ammonia molecule in the diagram has the observed bond orientation because