作者查詢 / licklabium
作者 licklabium 在 PTT [ CS_TEACHER ] 看板的留言(推文), 共27則
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23F推: 公開私下談話內容,恐怕有法律問題,還是小心一點08/12 22:21
7F→:問題是,給的四種溶液裡面,並沒有「水」啊~直覺不是得07/31 00:48
8F→:從給的四種溶液裡面去配出答案才對嗎?07/31 00:48
5F推:的確是應該要避開這類題目,但老師講述時可稍微提到07/29 20:00
2F→:我們用的硫酸銅和硫酸鋅溶液,只是把鹽橋換成銅線03/09 09:12
2F→:尚未,因為昨天我們幾個老師都有事,所以會約在下星期03/03 00:13
3F→:不過這小論文討論的也很仔細,可以先行參考03/03 00:14
11F→:導線也是銅,所以應該不是在硫酸銅這一杯產生反應02/23 22:48
12F→:應該是在硫酸鋅這一杯,可是鋅片驅使鋅在銅導線上析出02/23 22:49
13F→:這樣就很奇怪,表示電鍊會自行發生不需要額外能量了啊02/23 22:49
18F→:zamp大,我看到的表是:鋅的氧化電化0.76,水的還原電02/24 00:12
19F→:位-0.83,總和是-0.07,應該是不會反應才是,我誤會嗎?02/24 00:13
22F→:那表示,把鋅片放到水中,自然就會產生氧化還原嘍?02/24 11:26
27F→:如果是這樣子,是由H+還原,那水溶液應該會逐漸呈鹼性02/26 00:25
28F→:而且也應該會產生氣泡…下次我們做時我仔細看一下02/26 00:26
7F推:推…很多學生都會將自己的行為合理化,有些家長也是04/16 16:02
4F推:呼~鐘點高達8000!!這是幾個人一班的名師啊?02/23 14:12
12F推:超極中肯的啊!果然是有經驗的人講的話02/23 14:15
30F推:為什麼啊?我教甄就是劃黑板考上,評審還拍手耶11/30 12:33