Question

answer the question fast plzzz​

Answer 1

2Al+3/2O2---->Al2O3

we have the balanced equation

we see that 3/2 or 1 1/2 moles of O2 combine to give 2 moles of Al

therefore mass of Al required=2*27=54 gm

Answer 2

Answer:

Area of a //gm = base*height

B=5cm ; h=3.5cm

=17.5

=17.5*6.5

=113.75(answer)