Na₂CO₃ + Ca(OH)₂ = CaCO₃ + 2NaOH
Ca(OH)₂ + 2HNO₃ = CaCO₃ + 2H₂O
Na₂CO₃ + 2HNO₃ = 2NaNO₃ + H₂O + CO₂ \ Ca(OH)₂ + CO₂ = CaCO₃ + H₂O
2CH4 (1500°)= C2H2 + 3H2
C2H2 + H2O (t,Hg2+)= CH3COH
CH3COH + Ag2O (t,NH3*H2O)= CH3COOH + 2Ag
CH3COOH + C2H5OH (t>140°,h2so4(k))= CH3COOC2H5 + H2O
CH3COOC2H5 + H2O (h2so4(k))= CH3COOH + C2H5OH
2C2H5OH + 2Na = 2C2H5ONa + H2
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Будь внимательнее в условии.