Генетическая связь веществ.р. обменС -->Co2 --> H2Co3 --> Na2Co3N2 --> N2O5 --> HNo3 --> Zn(No3)2
Ca --> CaO --> La(OH)2 --> CaCl2
Li --> Li2O --> LiOH --> Li2SO4
1.
C → CO2 → H2CO3 → Na2CO3 C + H2O(пар) = CO2 + H2CO2 + H2O = H2CO3H2CO3 + 2NaOH(конц.) = Na2CO3 + 2H2O
3.
Ca → CaO → Ca(OH)2 → CaCl2 MgO + Ca = CaO + MgCaO + H2O = Ca(OH)2Ca(OH)2 + CuCl2 → Cu(OH)2↓ + CaCl2
4.
4Li + О2 = 2Li2О Li2O + H2O = 2LiOH 2LiOH + Н2SO4 = Li2SO4 + 2H2O
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Answers & Comments
1.
C → CO2 → H2CO3 → Na2CO3
C + H2O(пар) = CO2 + H2
CO2 + H2O = H2CO3
H2CO3 + 2NaOH(конц.) = Na2CO3 + 2H2O
3.
Ca → CaO → Ca(OH)2 → CaCl2
MgO + Ca = CaO + Mg
CaO + H2O = Ca(OH)2
Ca(OH)2 + CuCl2 → Cu(OH)2↓ + CaCl2
4.
4Li + О2 = 2Li2О
Li2O + H2O = 2LiOH
2LiOH + Н2SO4 = Li2SO4 + 2H2O