а) Ca -->CaO --> Ca(OH)2 --> CaCl2 --> AgCl
1) 2Ca+O2=2CaO
2) CaO+H2O=Ca(OH)2
3) Ca(OH)2+2HCl=CaCl2+2H2O
4) CaCl2+2AgNO3=Ca(NO3)2+2AgCl
Ca(2+)+2Cl(-)+2Ag(+)+2NO3(-)=Ca(2+)+2NO3(-)+2AgCl(осад)
2Cl(-)+2Ag(+)=2AgCl
б) C2H2 --> CH3CHO --> CH3COOH --> CH2ClCOOH --> CH2NH2COOH
1) C2H2+H2O=CH3CHO
2) 2CH3CHO+O2=2CH3COOH
3) CH3COOH+Cl2=CH2ClCOOH+2HCl
4) CH2ClCOOH+2NH3=CH2NH2COOH+NH4Cl