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1)Ch4+cl2=ch3cl+hcl

2)ch3cl+na-ch3-ch3+nacl

3)ch3-ch3(t)=ch2=ch2+h2

4)ch2=ch2+hcl=ch2cl-ch3

5)ch2-ch3+cl2=ch2cl-ch2cl+hcl                  Этан ch3-ch3(t)=ch2=ch2+h2(этилен)   

     |

    cl                                                                     ch2=ch2+3o2=2co2+2h2o(углекислый газ)

                                                                             ch2=ch2+hoh=ch2-ch2

                                                                                                                  |

                                                                                                                 oh

1) Са → СаО → Са(ОН)2 → Ca(NO3)

2Сa + O2 = 2CaO

CaO + H2O = Ca(OH)2

Ca(OH)2 + 2HNO3 = Ca(NO3)2 + 2H2O

2) Сu → СuО → СиСl2 → Сu(ОН)

2Сu + O2 = 2CuO

CuO + H2O = Cu(OH)2

Cu(OH)2 + 2HCl= CuCl2 + 2H2O

3) Mg → MgO → MgCl2 → MgSO4

2Mg + O2 = 2MgO

MgO + 2HCl = MgCl2 + H2O

MgCl2 + Na2SO4 =  MgSO4 + 2NaCl

4) Fe2(SO4)3 → Fe(OH)3 → Fe2O3 → Fe2(SO4)3

Fe2(SO4)3 + 6KOH = Fe(OH)3 + 3K2SO4

2Fe(OH)3 = Fe2O3 + 3H2O

Fe2O3 + 3H2SO4 = Fe2(SO4)3 + 3H2O

5) Zn → ZnCl2 → Zn(OH)2 → ZnO

Zn + Cl2 = ZnCl2

ZnCl2 + 2KOH = Zn(OH)2 + 2KCl

Zn(OH)2 = ZnO + H2O

6) Сu → CuO → CuCl2 ↓ →  CuSO4

2Cu + O2 = 2CuO

CuO + 2HCl = CuCl2 + H2O

CuCl2 + K2SO4 =  CuSO4 + 2KCl

7) Si → SiO2 → Na2SiO3 → H2SiO3

Si + O2 = SiO2

SiO2 + Na2O = Na2SiO3

Na2SiO3 + 2HCl = H2SiO3 + 2NaCl

8) H2SO3 → Na2SO3 → SO2 → CaSO3

H2SO3 + 2NaBr = Na2SO3 + 2HBr

Na2SO3 = Na2O + SO2

SO2 + CaO = CaSO3

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