решить уравнения по схеме:
a) Ca - Ca3N2 - Ca(OH)2 - Ca(NO3)2 - CaCl2
б) Ca - CaO - CaC2 - Ca(OH)2
a) Ca - Ca3N2 - Ca(OH)2 - Ca(NO3)2 - CaCl2
б) Ca - CaO - CaC2 - Ca(OH)2
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Answers & Comments
Ca3N2 + 6H2O = 3Ca(OH)2 + 2NH3;
Ca(OH)2 + 2HNO3 = Ca(NO3) 2 + 2H2O;
Ca(NO3)2 + 2HCI = CaCI2 + 2HNO3.
б) 2Ca + O2 = 2CaO;
CaO + 3C = CaC2 + CO;
CaC2 + 2H2O = Ca(OH)2 + C2H2.