V2/v1=j^(10/10)=3, значит j=3
v2/v1=3^(35/10)=46,8 раз
P2 +3 O3 -2 ,K+1Br -1,HF H +1, F -1,<span>Ca3(PO4)2 </span><span>Ca-+2 </span><span>P+5 </span><span>O-2 </span>
BaO + H2O -> Ba(OH)2
K2O + H2O -> 2KOH
SO3 + H2O -> H2SO4
CuSO4+H2S=CuS+H2SO4
2CuS+3O2=2CuO+2SO2
SO2+Na2O=Na2SO3
Na2SO3+2KOH=K2SO3+NaOH