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care dintre perechile de substante pot interactioana intre ele???????? a)KCL+AgNO3 b)BaCl+NaOH C)HCL+Na2SO4 d)NacCl+HNO3

Răspuns :

AgNO3 + KCl =AgCl + KNO3
Na2SO4+2HCl = 2NaCl + H2SO4
NaOH + BaCl = NaCl + BaOH
NaCl + HNO3 = NaNO2 + HCl