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Which of the following statements is correct: A. in a solution of 1.0 M HCl, [H3O^+] is 1.0 M. B. In a solution of 1.0 M HF, [H3O^+] is less than 1.0 M. C. The acid ionization constant of HNO3 is less than that of HNO2. a) A and C only b) A and B only c) B and C only d) A, B, and C