Răspuns:
A+B
1mol........1mol
CO2 + Ca(OH)2---> CaCO3+H2O
10mol........x
x= niu=10molCa(OH)2
m=niuxM=10molx74g/mol=740gCa(OH)2
c=mdx1oo/ms---> ms=mdx100/c=740x100/10g=7400g
C.
2mol........1mol
2HCl + Ca(OH)2----> CaCl2 +2H2O
x...............10mol
x=niu=20molHCl
Explicație: