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Identificati substanțele notate cu litere si scrieti corect ecuatile din schema.
H² + a--> HCl
a+Fe-->b
HCl +c-->NaCl+H²
c+d-->NaOH+H²
d+e-->H²CO³
CaCO³-->CaO+e


Răspuns :

H² + Cl2-> 2HCl
CaCO³-->CaO+CO2

H2+Cl2(a)---> 2HCl
3Cl2+2Fe--> 2FeCl3(b)
2HCl +2Na(c)---> 2NaCl+H2
2Na+2H2O(d)---> 2NaOH+H2
H2O+CO2(e)--->H2CO3
CaCO3--->CaO+CO2(e)