Question

C2h15o + o2 gives co2+ h2o.calculate the chemical oxygen demand?

Answer 1

Answer:

Oxygen

the atomic mass of oxygen(Z) is 15 and atomic number(A) is 8

15-8=7electrons

7protons and

7 neutrons

Aluminium

the atomic mass of aluminium is(Z) 27 and atomic number(A) is 13

27-13=14 electrons

14 neutrons and

14 protons.

Explanation: