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2017 Chemistry ITA 鸡精

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发表于 2017-8-21 20:38:30 | 显示全部楼层 |阅读模式
2017.8.21考了ITA鸡精,给大家写一下,做好事。7 P! t6 L+ z! g. O$ Q

+ r6 H6 M$ r* @1 k8 u$ g' R/ m1:阅读:20min ,take notes: 文章:Acids and bases。分为两个部分: characteristics of acids and bases . 第二部分:definition of acids and bases. 第一部分讲了:1: taste sour (lemon juice)的是酸,bitter (soap)的是碱。2:acids can react with metals: HCl + Mg release H2. while commonly bases cannot react with metal.
* D" S( j( R  z( ~# d& e4 t3: electric current is not conducted in pure water. 酸碱溶液中却能导电,因为有 ions(electrilyte?忘记拼写了)
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( g2 |8 m8 ]4 t- j$ F第二部分:1:用indicator指示酸碱:bromthymol(不记得) blue was poured into acid solution turns to bright yellow. 碱中颜色不变。2:举了 HCl 和 NH3 gas 溶解变成酸碱是怎么回事。然后Bronsted酸碱理论···。酸碱中和。没了。$ ^! p( d, s8 K2 o+ D1 i7 m
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2;读词汇 25个很简单:acid,base, solution, compounds, protons`````````````````都是基本的,
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7 c$ g9 n- s/ {' y8 G* L/ t! U3:解释自己选两个,选的compounds和protons.
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4 f$ I) J4 _- R  i0 \# r: B0 g4:图表题: USA, Sweden,Japan 1940-2040 65 以上老人的比例的变化。记得要提二战。
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5:role play,活泼一点,想怎么说怎么说。* I; |3 `0 z$ ^' t0 k% p
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