What would be the preferred charge of an atom of Sb if it would have to be charged? Please explain your answer based on the electronic configuration, valence electrons, and periodic trends.

In which of these cases are the two wave points considered to be in phase with each other?

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.

Areaction is first order with respect to reactant x and second order with respect to reactant y. which statement describes the rate law for this reaction?