Написать реакции горения с коэффициентами:
CxH8; CxHy; CnH2n; CnH2n-2; CxHyO; CnH2n+2O; CxHyOz

1) CxH8 + (x+2)O2 = xCO2 + 4H2O;

2) CxHy + (x+0.25*y)O2 = xCO2 + 0.5*yH2O;

3) CnH2n + 1.5*nO2 = nCO2 + nH2O;

4) CnH2n-2 + (1.5*n-0.5)O2 = nCO2 + (n-1)H2O;

5) CxHyO + (x+0.25*y-0.5)O2 = xCO2 + 0.5*yH2O;

6) CnH2n+2O + 1.5*nO2 = nCO2 + (n+1)H2O;

7) CxHyOz + (x+0.25*y-0.5*z)O2 = xCO2 + 0.5*yH2O.