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3題化學請教高手，謝謝！

Aug 27th 2013, 04:58

1.
http://i.imgur.com/tz7gVGT.png

皆為50克的ABCD,完全溶解的溫度高低順序是DCBA

由100度降溫,最快溶解的是D 依序為C.B.A

所以答案是(B)

2.從電子數跟質子數的比可以知道半徑大小

(A)34質子,36電子 (B)35質子,34電子 (C)37質子,35電子(D)38質子,36電子

(D)的比值38/36最大,所以答案是(D)

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