👤

ajutati-ma va rog frumos

Ajutatima Va Rog Frumos class=

Răspuns :




                   56g                 100g
                  CaO +CO2=CaCO3
                  x                   25g


MCaO=40+16=56
MCaCO3=40+12+3.16=100

X=56.25:100=14 g CaO