A: 点燃酒精灯
B: 取用碳酸钠
C: 稀释浓硫酸
D: 加入大理石
下列物质能使紫色石蕊溶液变红的是( )
Nobody knew who was the first ________ at school that morning when the window was broken.
分子式为C4H10O的醇与分子式为C6H12O2的羧酸形成的酯(不考虑立体异构)共有( )