1 а.е.м-1/12, Na-6.02*10^23 m(0)=16 m(N)=14 M(H2O)=18 А ДАЛЬШЕ РАССТАВЬ В ПОРЯДКЕ УВЕЛИЧЕНИЯ
Объяснение:
(CH3)3CCH2CH2C(CH3)2CH2CH3
100% - 15% (рв)=85% (H2O)
mr (H2O)=(85%×120г)100%
mr (H2O)=102г
<span>2Ca+O2=2CaO</span>
<span>2Hg+O2=2HgO </span>
<span>4Fe+3O2=2Fe2O3</span>
<span>2K+CL2=2KCL</span>
<span><span> N2+O2=2NO</span></span>
1) CH3–CH(CH3)–CH(C2H5)–CH2–CH(CH3)–CH2–CH2–CH3
2) CH2=C=CH–CH3
3) CH2=C(CH3)–CH(CH3)–CH2–CH3