👤

stabileste valenta elementelor in formule : CaO,CH4,N2O5,HCI,SO3.

Răspuns :

CaO valenta 2
CH4 inseamna Hidroxid de carbon(cred nus sigur). C(carbon) are valenta 4 si H are valenta 1
HCL inseamna clorura de hidrogen . H are valenta 1 si Cl9clor ) are valenta 2
So3 valenta 2