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Ex. 17.8 DAU COROANA!!!
VA ROG MULT URGENT!


Ex 178 DAU COROANAVA ROG MULT URGENT class=

Răspuns :

a)2Fe+3Cl2=2FeCl3 combinare
b)Fe+H2SO4=FeSO4+H2 substitutie
c)Zn+2HCl=ZnCl2+H2 substitutie
d)Zn+CuSO4=ZnSO4+Cu substitutie
e)Ca(OH)2+2HCl=CaCl2+2H2O substitutie
f)2NaOH+H2SO4= Na2SO4+2H2O schimb