Chemistry, 26.05.2021 20:30 cjtambasco

Which equilibrium represents a buffer equilibrium? A.
HI + H2O ⇔ H3O+ + I-
B.
HCN + H2O ⇔ H3O+ + CN-
C.
NaOH ⇔ OH- + Na+
D.
HCl + H2O ⇔ H3O+ + Cl-
E.
HClO4 + H2O ⇔ H3O+ + ClO4-

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Which equilibrium represents a buffer equilibrium? A.
HI + H2O ⇔ H3O+ + I-
B.
H...