1. A3 Б2 В1 Г3
2. 2
3.1
4. 2CH4=C2H4+2H2 t.kat
C2H4+HOH=C2H5OH
C2H5OH+[O]=CH3COH
CH3COH+Ag2O=CH3COOH+2Ag↓
5. nC=88.2/12=7.35mol
nH=100-88.2/1=11.8mol
C:H=7.35:11.8=2:3 простейшая формула С2Н3 - это алкин
M(CxHy)=d(He)·M(He)=17·4=68g/mol
nC2H3=68
27n=68
n=2.5
n=5
C5H8-пентин
6.
7.8g xg
C6H6+HONO2=C6H5NO2+H2O
78g 123g
x=7.8·123/78=12.3g