CH3-CH2-COOH + HO-CH3 -> CH3-CH2-COOCH3 + H2O
2HCl + Mg = MgCl2 + H2↑
2HCl + 2Na = 2NaCl + H2↑
6HCl + 2Al = 2AlCl3 + 3H2↑
2H2O = 2H2↑ + O2↑
CH4 = С + 2Н2↑
1)C2H5OH+CuO=C2H4O(aльдегід)+Cu+H2O
2)C2H4O(aльдегід)+Cu(OH)2=CH3COOH+CuOH+H2O
3)CH3COOH+СH3OH=CH3-C00-CH3(естер)+H2O
4)CH3-C00-CH3=CH3COOH+СH3OH
Li2O + H2O -> 2LiOH
SO3 + H2O -> H2SO4
N2O5 + H2O -> 2HNO3
P2O5 + 3H2O -> 2H3PO4
2K + 2H2O -> 2KOH + H2