D(CxHy)=2.69*29=78,01w(C)=M(C)*x/M(CxHy)0.923=12*x/78.0112x=0.923*78.0112x= 72x=6w(H)=M(H)*y/M(CxHy)1-0.923=1*y/78.01 0,077=y/78.01y=6 =>C6H6 - бензол!
1)2C+O2=2CO