H2С=С(CH3)-СH2-СH3 + Br2 -> H2BrC-СBr(CH3)-СH2-СH3
А)2Al+6HCl=2AlCL3+H2
AlCl+HNO3=Al(NO3)3+HCl
AL(NO3)3+3NaOH=Al(OH)3+3NaNO3
Al(OH)3+H2So4=Al2(So4)3+H2O
б)Cu+2HCl=CuCL2+H2
CuCl2+2Na=Cu+2NaCl
2Cu+O2=2Cuo
Cuo+HNO3=Cu(NO3)2+H2O
в)6Fe+2HCl=2FeCl3+H2
FeCl3+NaOH=Fe(OH)3+NaOH
Fe(OH)3+H2So4=Fe2(So4)3+H2O
Fe2(SO4)3+H2==t==>Fe+H2So4
г)Fe+HCl=FeCL3+H2
FeCl3+HNO3=Fe(NO3)3+HCL
Fe(NO3)3+H2So4=Fe2(SO4)3+HNO3
Fe2(SO4)3+H2==t==>Fe+H2So4
5)C+O2=CO2
Co2+CaO=CACO3
CaCo3+H2O=H2CO3+CA(OH)2
H2CO3+Ca(OH)2=CaCo3+H2O
б)Na+O2=Na2O
Na2O+H2O=NAOH
NaOH+HNO3=NaNo3+H2O
NaNO3+H2O=HNO3+NaoH
HNO3+Cu=Cu(NO3)2+H2
Cu(NO3)2+KOH=Cu(OH)2+KNO3
в)4P+5O2=2P2O5
P2O5+H2=H3PO4
H3Po4+Ca=Ca3(PO4)2+H2
Ca3(PO4)2+H2O=H3PO4+Ca(OH)2
H3PO4+Na=Na3PO4+H2
г)4K+O2=2K2O
K2O+H2O=2KOH
2KOH+H2CO3=K2CO3+H2O
K2Co3+2HCl=2KCl+H2Co3
2KCl+H2SO4=K2So4+2HCl
Д)S+Fe2So3=FeS2+SO2
FeS2+H2O=H2S+Fe(OH)2
H2S+NaOH=Na2S+H2O
Na2S+H2SO4=NA2So4+H2S
е)Mg+Ch3Cooh=Ch3CooMg+H2
Ch3CooMg+HCl=Ch3CooH+MgCl2
Ch3Cooh+K=CH3Cook+H2
6)Na+O2=NA2O
Na2O+H2O=NaOH
NaOH+HNO3=NaNO3+H2O
б)K+O2=K2O
K2O+H2O=2KOH
KOH+H2Co3=K2Co3+H2O
в)2Cu+O2=2CuO
CuO+HCl=Cucl2+H2O
CuCl2+NaOH=NaCl+CU(OH)2
Cu(OH)2=CuO+H2O
г)2Ca+O2=2CaO
CaO+H2O=CA(OH)2
CA(OH)2+HCl=CaCl2+H2O
д)2Zn+O2=2ZnO
ZnO+HNO3=Zn(NO3)2+H2O
Zn(NO3)2+LiOH=LiNO3+Zn(OH)2
Zn(OH)2+H2So4=ZnSO4+H2O
e)2Ba+O2=2BaO
BaO+Ch3CooH=CH3COOBa+H2O
1) S + O2 = SO2 ; SO2 + O3 = SO3 + O2 ; SO3 + H2O = H2SO4 ; K2ZnO4 + 2H2SO4 = K2SO4 + ZnSO4 + 2H2O ; 2) 2Cu + O2 = 2CuO ; CuO + H2SO4 = CuSO4 + H2O ; CuSO4 + 2NaOH = Cu(OH)2 + Na2SO4 ; Cu(OH)2 = CuO + H2O (нагрев)
H2S + KMnO4 + H2SO4 = SO2 + K2SO4 + MnSO4 + H2O, баланс:
H2S + 2H2O -6e- = SO2 + 6H+ | 6 | 30 | 5 |
(MnO4)- + 8H+ +5e- = Mn+2 + 4H2O | 5 | | 6 |;
5H2S + 6(MnO4)- + 18H+ = 5SO2 + 6Mn+2 + 14H2O;
5H2S + 6KMnO4 + 9H2SO4 = 5SO2 + 3K2SO4 + 6MnSO4 + 14H2O.
