2
Which of the following is in the formula for an acid?
OH
ООН:
hydroxide
O oxide

Which of the following best describes the formation of plasma?

Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17

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.