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CH2=CH2 + H2O -> CH3-CH2-OH (kat)
CH3-CH2-OH -> CH2=CH2 + H2 (t>140, H2SO4)
CH3CH2-OH +CuO -> CH3COH + Cu + H2O
CH3COH + Ag2O = CH3COOH + 2Ag
CH3COOH + NaOH = CH3COONa + H2O