Ответ:

CH3-CH3+Br2-->CH3-CH2Br+HBr

2CH3-CH2Br+2Na-->C4H10+2NaBr

2C4H10+13O2-->8CO2+10H2O

Объяснение:

Ответ:

CH3-CH3 + BR2 = CH3-CH2-Br + HBr

CH3-CH2-Br + CH3-CH2-Br + 2Na = CH3-CH2-CH2-CH3 + 2 NaBr

2C4H10 + 13O2= 8CO2 + 10 H2O