здійснити перетворення:
C→CO2→CaCO3→CO2
Zn→ZnO→ZnCl→AgCl
S→SO2→SO3→H2SO4→BaSO4
Ca→CaO→Ca(OH)2→CaCl2→AgCl
C→CO2→CaCO3→CO2
Zn→ZnO→ZnCl→AgCl
S→SO2→SO3→H2SO4→BaSO4
Ca→CaO→Ca(OH)2→CaCl2→AgCl
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Answers & Comments
CaO + CO2 = CaCO3
CaCO3 =t= CaO + CO2
2Zn + O2 = 2ZnO
ZnO + 2HCl = ZnCl2 + H2O
ZnCl2 + 2AgNO3 = 2AgCl + Zn(NO3)2
S + O2 = SO2
2SO2 + O2 = 2SO3
SO3 + H2O = H2SO4
H2SO4 + BaO = BaSO4 + H2O
2Ca + O2 = 2CaO
CaO + H2O = Ca(OH)2
Ca(OH)2 + 2HCl = CaCl2 + 2H2O
CaCl2 + 2AgNO3 = Ca(NO3)2 + 2AgCl