Question

Alegeti varianta care contine numai acizi monoprotici:
a) HNO3, HI, Cl(-), CO3(2-);
b) HI, HF, HCN, HCO3(-);
c) KOH, NH3, CO3(2-), HCl. ​

Answer 1

b    pentru ca fiecare compus poate ceda un proton

HI+H2O---> H3O⁺ + I⁻

HF+H2O----> H3O⁺ + F⁻

HCN+H2O---> H3O⁺ + CN⁻

HCO3⁻ + H2O------> H3O⁺ + CO3²⁻

Answer 2

b) HI, HF, HCN, HCO3-