Question

помогите поож w(0)=23,5% Crx Oy-?

Answer 1

w(0)=23,5% Crx Oy-?
W(Cr)=100% - 23.5%=76.5%
CrxOy= 76.5/52 : 23.5/16 = 1.5:1.5 = 1:1
CrO - оксид хрома(2)