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1.個gel含有兩種ions,咁佢係mixture定compound?
2.點解要用carbon既?
3.d hydrochloric acid係要離做咩家?
4.'The gel slows down the mixing of the bottom layer with the top layer(dilute hydrochloric acid.' 依句點解?點解個gel可以slows down the mixing既?
chemistry..關於ions~
2007-05-16 4:06 am
回答 (1)
2007-05-16 4:39 am
✔ 最佳答案
1. Mixture. It is a mixture of water and two ions...2. As carbon can conduct electricity and it does not react with the reactants.
3. To mobile the ions. Ions can only form in the presence of water.
4. Gel is solid while HCl is liquid. Ions in the gel cannot dissolve in HCl quickly
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