2. Aluminium reacts with iron(III) oxide as shown.
iron(III) oxide + aluminium → iron + aluminium oxide
Which statement about this reaction is correct?
A
Aluminium is oxidised.
B
Aluminium oxide is reduced.
C Iron(III) oxide is oxidised.
D
Iron is oxidised.

What does the cell nucleus do or, how does it function?

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li

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.