Some hydrochloric acid is added to some zinc strips in a test-tube. The test-tube is connected to a syringe which collets the gas given out.
Q1.)What is the word equation for the reaction between zinc strips and hydrochloric acid?
Q2.)How can we measure the rate of the above reaction?
Q3.)State a method that can increase the rate of the above reaction?
在試管中,一些鋅片加上些鹽酸。 試管連接了一個針筒用來收集被釋放出的氣體。
Q1)鋅片跟鹽酸之間的反應的化學式是什麼？
Q2)我們能怎樣做去量度上面的反應的速度？
Q3)舉出增加上面之反應的速度的方法嗎？
[F.2 Sci]15點!!中英對照 {About the reaction between zinc and HCI}
2008-03-18 6:08 am
回答 (2)
2008-03-18 7:13 am
✔ 最佳答案
Q1) Word equation:
zinc hydrochloric acid --> zinc(II) chloride hydrogen
Q2)
Measure the amount the gas released in each minute by a syringe(1)
Divide the change in amount of gas by the time taken(1)
Q3)
- Increase the concentration of hydrochloric acid
- Use zinc powder
( any one set @ 1 )
2008-03-17 23:13:55 補充：
修改: Measure the amount "of" gas released in each minute by a syringe(1)
2008-03-18 6:22 am
1. zinc + hydrochloric acid -> zinc choride + hydrogen
2. we can measure the rate of the reaction by measuring the rate of hydrogen emission.
3. To use high concentration hydrochloric acid
2. we can measure the rate of the reaction by measuring the rate of hydrogen emission.
3. To use high concentration hydrochloric acid
收錄日期: 2021-04-23 21:20:48
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080317000051KK03400