Write the complete balanced equation for the reaction that occurs when calcium carbonate (caco3) reacts with lithium nitride (li3n) in an aqueous solution.

As you move from right to left on the periodic table the atomic radius fill in the blank

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

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.