题目

32. Two middle-aged passengers fell into the sea. ____, neither of them could swim. A. In fact     B. Luckily           C. Naturally       D. Unfortunately 答案：D强酸与强碱反应中和热的数值是57.3kJ/mol．下列反应物混合产生的热量等于57.3kJ的是（　　）A．1mol/L1L的稀HCl溶液与1mol/L1L的稀NaOH溶液B．1mol/L1L的稀H2SO4溶液与1mol/L2L的稀NaOH溶液C．1mol/L2L的稀HCl溶液与1mol/L1L的稀Ba（OH）2溶液D．1mol/L1L的稀H2SO4溶液与1mol/L1L的稀Ba（OH）2溶液