图1是初中化学的几种常用仪器,根据要求回答问题:
(1)写出仪器C的名称 。
(2)实验室用过氧化氢溶液制取氧气,应选用的仪器是 (填字母序号),反应的化学方程为 ;若用稀盐酸制取二氧化碳气体,还需要的药品为 ,检验二氧化碳气体已集满的方法是 。
(3)小明为了用图2装置收集一定量的氧气,装置接口连接的顺序为 ,量筒的作用 。
--- Can you tell me ______ on the Internet? --- OK, mum.
Thousands of houses _______ by the floods in Guangxi last month.
more, and you'll improve your spoken English.
--- I've just got a postcard from my pen friend. --- Let me have a look. Wow.nice card!
--- What is your favourite sport? --- Swimming, I think. It's of all.