Если не понятен почерк:
1) CH4 → C2H2
2) C2H2 → C2H4
3) C2H4 → C2H5OH
4) C2H5OH → CH3COH
5) CH3COH → C2H5OH
6) C2H2 → CH3COH
7) CH3COH → CH3COOH
8) CH3COOH → CHCOOC5H11
9) CHCOOC5H11 → CH3COOH

1) 2CH4 → C2H2 + 3H2 ( t)
2) C2H2 + H2 → C2H4 ( Kt = Ni,t)
3) C2H4 + H2O → C2H5OH
4) C2H5OH + CuO → CH3COH + Cu + H2O
5) CH3COH + H2 → C2H5OH
6) C2H2 + H2O → CH3COH ( kt= HgSO4,t)
7) CH3COH + Ag2O → CH3COOH + 2Ag
8) CH3COOH + C5H11OH → CHCOOC5H11 + H2O ( Kt=H2SO4,t)
9) CHCOOC5H11 + H2O → CH3COOH + C5H11OH