化學方程式

Yes you MUST indicate the state of something when writing a chemical equation, ie. (s) for solid; (l) for liquid; (aq) for aqueous; (g) for gas. Be careful that (l) and (aq) are NOT the same.
你們介不介意你們會考化學科的成績？ No I can't tell you that because I did that overseas...but I still won't tell you how I went I my exam! =P

2006-10-29 16:41:03 補充：
in my exam...sorry

參照以往香港會考化學科的評分，若題目要求寫狀態符號的話，狀態符號是會評分的; 但若沒有說明要求寫狀態符號的話，狀態符號是不會評分的，就算寫了，無論對錯也不扣分。

yes you have to write the state symbol. especially when there is change of state, such as Cu2+(aq)+ ON-(aq) -----> Cu(OH)2 (s). if you do not write the state symbol, must will be decucted.