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completeaza ecuatiile de mai jos,stabileste coefecientii a)NaOH+?-Na2CO3+? b)NaOH+?-Zn(OH)2+? c)NaOH+?-NaCl+?

Răspuns :

a) 2NaOH + CO2 => Na2CO3+H2O
b) 2NaOH + ZnCl2 => Źn(OH)2+ 2NaCl
c) NaOH +HCl=>NaCl+H2O