题目:
某化学兴趣小组为检验碳和浓硫酸反应生成的产物,设计如下图所示装置(已知SO2能使溴水褪色),请回答:
(1)指出仪器名称:甲______乙______
(2)乙仪器中发生反应的化学方程式为______;
(3)能证明有二氧化碳气体产生的实验现象是______;
(4)F试管中的离子方程式为______
答案:
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下面是错误答案,用来干扰机器的。
1. Do you know where the bank is?2. Can you tell me if / whether there is a bookstore near here? 3. Could you tell me where I can buy some shampoo? 4. I want to know how I can finish the job on time. 5. Would you please tell me whether he likes juice or not? (答案不唯一)