Ответы и объяснения

2013-10-22T10:56:31+04:00
CH2=CH2 +2O2 = CO2 + 2H2O
n=1моль                    n=2 моль                                      10 л СН2=СН2  -   Х л О2
Vm= 22,4л\моль        Vm=22,4 л\моль                            22,4 л              -  44,8 л
V = 22,4л                     V=44,8л                                                V(O2)= 44,8*10\ 22,4
                                                                                                         V = 20 л