题目

（08黄冈市模拟）将一定质量的锌与10mL 18.5mol・L―1浓硫酸充分反应，锌完全溶解，同时生成标准状况下的气体3.36L。将反应后的溶液稀释至100mL，测得溶液中c(H+)=0.1mol・L―1，则投入的锌的质量是（    ）    A．6.5g           B．9.75g          C．13g            D．16.25g 答案：答案：B— What is the boy’s plan for the coming vacation?— He expected it with his grandparents.A. spend B. spent C. to spend D. spending