Question

Са →СаО → Ca(OH)2 → CaCl2 →CaSO4


Срочно​

Answer 1

2 Ca + O2 → 2 CaO

CaO + H2O → Ca(OH)2

Ca(OH)2 + 2 HCl → CaCl2 + 2 H2O

CaCl2 + Na2SO4 → CaSO4 + 2 NaCl

Answer 2

Ответ:

2Ca+O2=2CaO

CaO+H2O=Ca(OH)2

Ca(OH)2+2HCl=CaCl2+2H2O

CaCl2+H2SO4=CaSO4+2HCl