15 Arrange the acids HOCl, HClO₃, and HClO₂ in order of increasing acidity.(A)HOCl＜HClO₃＜HClO₂(B)HOCl＜HClO₂＜HClO₃(C)HClO₂＜HOCl＜HClO₃(D)HClO₃＜HOCl＜HClO₂(E)HClO₃＜HClO₂＜HOCl

17 For the reaction H₂(g)+S(s)→H₂S(g), ΔH°=-20.2 kJ/mol and ΔS°=+43.1 J/K·mol. Which of these statements is true?(A)The reaction is only spontaneous at low temperatures.(B)The reaction is spontaneous at all temperatures.(C)ΔG° becomes less favorable as temperature increases.(D)The reaction is spontaneous only at high temperatures.(E)The reaction is at equilibrium at 25°C under standard conditions.

15 Arrange the acids HOCl, HClO₃, and HClO₂ in order of increasing acidity.

(A)HOCl＜HClO₃＜HClO₂

(B)HOCl＜HClO₂＜HClO₃

(C)HClO₂＜HOCl＜HClO₃

(D)HClO₃＜HOCl＜HClO₂

(E)HClO₃＜HClO₂＜HOCl

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