Автор - kirill133722871
Ответ:
Объяснение:
2Al +3Cl2 -> 2AlCl3
AlCl3 + 3NaOH = Al(OH)3 + 3NaCl
2Al + 2NaOH + 6H2O = 2Na[Al(OH)4] + 3H2
Al(OH)3 + NaOH = Na[Al(OH)4]
Al2O3 + 2NaOH +3H2O= 2Na[Al(OH)4]
2Al(OH)3 -> Al2O3 + 3H2O
2) Ca + H2 = CaH2
CaH2 + 2H2O = Ca(OH)2 + 2H2
Ca + 2H2O = Ca(OH)2 + H2
Ca(OH)2 + 2CO2 = Ca(HCO3)2
Ca(OH)2 -> CaO + H2O
Ca(HCO3)2 -> CaCO3 + CO2 + H2O
CaCO3 + 2HCl = CaCl2 + CO2 + H2O
CaO + 2HNO3 = Ca(NO3)2 + H2O