1) CH3-CH2-CH3+Br2=CH3-CHBr-CH3+HBr - 2-монобромпропан
2) CH3-CHBr-CH3+Br2=CH3-CBr2-CH3+HBr - 2,2-дибромпропан
Mr(SCl4) = 32 + 35*4 = 172
Mr(CS2) = 12 + 32*2 = 76
<span>Лови: </span>
<span>N2+3H2<-->2NH3 </span>
<span>4NH3+5O2--->4NO+6H2O </span>
<span>2NO+O2<-->2NO2 </span>
<span>4NO2+2H2O+O2--->4HNO3 </span>
<span>4HNO3(разбавленная)+3Ag--->3AgNO3+NO+2H2O </span>
<span>Баланс долго.</span>
Nh3+hcl=nh4cl
n(nh3)=112/22,4=5
n(hcl)=267,5/36,5=7,3
берем недостаток
m=n*M(nh4cl)=53,5*5=267,5