Ответ:
1)Са → CaCl2 → Ca(OH)2 → Fe(OH)2 → FeCl2 → FeO
Ca+ Cl2 = CaCl2
CaCl2 + 2NaOH = 2NaCl + Ca(OH)2
Ca(OH)2 + FeCl2 = CaCl2 + Fe(OH)2
Fe(OH)2 + 2HCl = 2H2O + FeCl2
2FeCl2 + O2 = FeO + 2Cl2
2)S → H2S → K2S → KI → АgI → Ag2
H2 + S = H2S
H2S + 2KOH = K2S + H2O
K2S + I2 = 2KI + S
KI + AgNO3 = KNO3 + AgI
2AgI = 2Ag + I2
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Ответ:
1)Са → CaCl2 → Ca(OH)2 → Fe(OH)2 → FeCl2 → FeO
Ca+ Cl2 = CaCl2
CaCl2 + 2NaOH = 2NaCl + Ca(OH)2
Ca(OH)2 + FeCl2 = CaCl2 + Fe(OH)2
Fe(OH)2 + 2HCl = 2H2O + FeCl2
2FeCl2 + O2 = FeO + 2Cl2
2)S → H2S → K2S → KI → АgI → Ag2
H2 + S = H2S
H2S + 2KOH = K2S + H2O
K2S + I2 = 2KI + S
KI + AgNO3 = KNO3 + AgI
2AgI = 2Ag + I2