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wzór pentynu - C₅H₈
%C = 60u : 68u * 100% ≈ 88,24%
%H = 8u : 68u * 100% ≈ 11,76%
Zadanie 2.
a) C₂H₄ + Cl₂ -> C₂H₄Cl₂
b) C₂H₂ + H₂ -> C₂H₄