Răspuns :

Răspuns:

a.

1mol..........1mol..........1mol.......1mol

Ca(OH)2 +CO2--->CaCO3+H2O

x.................10mol

x= 10molCa(OH)2

M,Ca(OH)2=74g/mol

m= niuxM= 10molx74g/mol=740g

c=mdx100/ms-----> ms= mdx100/c= 740x100./2 g=37000g

1mol.............2mol

Ca(OH)2 +2HCl---> CaCL2 + 2H2O

10mol...........x=niu=20molHCl

Explicație: