y heat in air have a white powder is produced(the powder is yellow when hot)
with cold water no reaction,with dilute hydrochloric acid have gas bubbles given off readily
z heat in air give a brick-red flame,with cold water have gas bubbles given off slowly.with dilute hydrochloric acid have gas bubbles given off vionlentily
請大家幫幫手,急想知ans,唔係做唔到hw,thx
想人幫我解答x同z是什麼
2008-02-13 12:13 am
回答 (2)
2008-02-13 12:50 am
✔ 最佳答案
As follows: 圖片參考：http://i238.photobucket.com/albums/ff245/chocolate328154/Chem009.jpg?t=1202806242
2008-02-12 16:53:49 補充：
上面嗰個: MgO點會係yellow when hot ka?!
參考: My Chem Knowledge
2008-02-13 12:47 am
y is magnesium
z is calcium
z is calcium
收錄日期: 2021-04-30 22:12:12
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https://hk.answers.yahoo.com/question/index?qid=20080212000051KK02410