Ответ:
а) Ca — CaO — Ca(OH)2 — CaCl2 — CaCO3
1. 2Ca + O2 = 2CaO
2. CaO + H2O = Ca(OH)2
3. Ca(OH)2 + 2NaCl = CaCl2 + 2NaOH
4. CaCl2 + Na2CO3 = CaCO3 + 2NaCl
б) K — KOH — KCl — KNO3
1. 2K + 2H2O = 2KOH + H2
2. KOH + NaCl = KCl + NaOH
3. KCl + NaNO3 = KNO3 + NaCl
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Ответ:
а) Ca — CaO — Ca(OH)2 — CaCl2 — CaCO3
1. 2Ca + O2 = 2CaO
2. CaO + H2O = Ca(OH)2
3. Ca(OH)2 + 2NaCl = CaCl2 + 2NaOH
4. CaCl2 + Na2CO3 = CaCO3 + 2NaCl
б) K — KOH — KCl — KNO3
1. 2K + 2H2O = 2KOH + H2
2. KOH + NaCl = KCl + NaOH
3. KCl + NaNO3 = KNO3 + NaCl