👤

Completeaza si egaleaza ecuatiiile reactilor de obtinere a bazelor:
a) ....+H2O-NaOH
b) ....+H2O-Ca(OH)2
c)CuSO4+.....-Cu(OH)2 + ......
d)FeCL3+.......-Fe(OH)3 +.......


Răspuns :

2Na+2H2O=2NaOH+H2 
CaO+H2O=Ca(OH)2
CuSO4+2NaOH=Cu(OH)2+Na2SO4
FeCl3+3NaOH=Fe(OH)3+3NaCl