Ca + Cl2 = CaCl2
CaCl2 + 2NaOH = Ca(OH)2 + 2NaCl
Ca(2+) + 2Cl(-) + 2Na(+) + 2OH(-) = 2Na(+) + Cl(-) + Ca(OH)2
2OH(-) + Ca(2+) = Ca(OH)2
3Ca(OH)2 + 3S = CaSO3 + 2CaS + 3H2O
CaS + 2O2 = CaSO4
Объяснение:
Ca + Cl2 = CaCl2
CaCl2 + 2NaOH = Ca(OH)2 + 2NaCl
Ca(2+) + 2Cl(-) + 2Na(+) + 2OH(-) = 2Na(+) + Cl(-) + Ca(OH)2
2OH(-) + Ca(2+) = Ca(OH)2
3Ca(OH)2 + 3S = CaSO3 + 2CaS + 3H2O
CaS + 2O2 = CaSO4
Объяснение: