化學知識一問,,,,2007年mc第一條

秦兄

雖然係b
但係就唔係制鹽
係沉澱物生成
得銀先會生成白色沉澱物

Roy

ppt係沉澱物@@
我讀中文的 = =
yukating 發表於 27-3-2009 17:20

順便請大家學多個英文
precipitate

Zend

雖然係b
但係就唔係制鹽
係沉澱物生成
得銀先會生成白色沉澱物
秦兄 發表於 28-3-2009 17:40

咩叫鹽?

秦兄

鹽係HCl
唔好意思囉= =
一時忘記左

傻奶

真嫁?
鹽係HCl? 真係而家先知-.-
胃酸入面都有HCl 0.0咁胃酸係咪都有鹽?_?
NaCl又是什麼-.-?

Zend

胃酦係有

Chemically it is an acid solution with a pH of 1 to 2 in the stomach lumen, consisting mainly of hydrochloric acid (HCl) (around 0.5%, or 5000 parts per million), and large quantities of potassium chloride (KCl) and sodium chloride (NaCl).

FROM WIKIPEDIA

秦兄

唔係啵
鹽係氯化鈉啵= =
我講左酸添= =
死啦
記錯哂d中文

lamsw246

B=]
AgCl係沉澱-0-
通常人地囉AgNO3黎試Cl-