2Me+O2=2MeO
Ar(Me)=x
n(Me)=2/x
n(MeO)=2.8/(x+16)
n(Me)=n(MeO)
2/x=2.8/(x+16)
2x+32=2.8x
32=0.8x
x=40
ответ: 40
2Me+O2=2MeO
Ar(Me)=x
n(Me)=2/x
n(MeO)=2.8/(x+16)
n(Me)=n(MeO)
2/x=2.8/(x+16)
2x+32=2.8x
32=0.8x
x=40
ответ: 40