According to the activity series, all of the following single replacement reactions occur EXCEPT-
A 3 Mg (s) + 2 AI(NO3)2 (aq) → 3 Mg(NO3)2 (aq) + 2 Al (s)
B 2 Fe (s) + 3 Pb(NO3)2 (aq) → 2 Fe(NO3)2 (aq) + 3 Pb (s)
C Zn (s) + Cu(NO3)2 (aq) → Zn(NO3)2 (aq) + Cu (s)
D 3 Ag (s) + CO(NO3)3 (ag) → 3 AgNO3 (aq) + Co (s)

Which statements are true about electrolysis? check all that apply. electrolysis requires an acid be present. electrolysis is described by two half-reactions. electrolysis is not an industrial process. electrolysis results in commercially valuable products. electrolysis involves the transfer of electrons. reduction results in the loss of electrons. oxidation results in the loss of electrons.

Define dew point. i am writing this part to be able to ask the question

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.