2СН2ОН-СНОН-СН2ОН + 3Na --->2CH2ONa-CHONa-CH2ONa + 3H2 . n(H2) = 3 моль, V(H2)н. у. = 22.4*3 = 67.2 л
H⁺ + OH⁻ =H₂<span>O
</span>H⁺ + Cl⁻ + K⁺ + OH⁻ = K⁺ + Cl⁻ + H₂O
HCl + KOH = KCl + H₂O
<span>
</span>NH₄⁺ + OH⁻ = NH₃↑ + H₂<span>O
</span>NH₄⁺ + Cl⁻ + K⁺ + OH⁻ = NH₃↑ + H₂O + K⁺ + Cl⁻
NH₄Cl + KOH = NH₃↑ + H₂O + KCl
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Pb²</span>⁺ + SO₄²⁻<span> = PbSO</span>₄↓
Pb²⁺ + 2NO₃⁻ + 2K⁺ + SO₄²⁻ = 2K⁺ + 2NO₃⁻ + PbSO₄↓
Pb(NO₃)₂ + K₂SO₄ = 2KNO₃ + PbSO₄↓
C2H2 + H2 = C2H4
C2H4 + H2 = C2H6