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化學 高中

請問這個表格很重要需要背嗎 還是這個只會出現在段考 看過有印象就好

J SnCl2 → +2 MnSO4為資 +2 氧化反應 (E) K₂Cr 卫能作 數可擊 最低個 故 為 子 。 J 1 +6 氧化數 21Sc 22 Ti +7 +5 +4 +3 ③ 超氧化物中:氧原子的平均氧化數為一 2 超氧化鉀KO, -1/2 ④ 氧與氟生成的 OF, 中:氧原子的氧化數為+2,因氧的電負度僅次於氟,故只有與氟 結合時會出現正的氧化數。 +2 +1 (4) 其他各族氧化數之範圍: ①碳族(4A 族,4個價電子)氧化數範圍:+4~~4。 ②氮族(SA族,5個價電子)氧化數範圍:+5~-3° ③ 氧族(6A 族,6個價電子)氧化數範圍:+6~-2(O例外) ④鹵素(7A 族,7個價電子)氧化數範圍:+7~-1(F 例外,F 氧化數必為-1)。 (5) 過渡金屬︰過渡金屬大多呈現多樣化的氧化數型態,以第一列過渡金屬為例,僅 Sc 與 Zn 具有單一種常見的氧化數,其餘的第一過渡金屬均具有不只一種氧化數: 23 V 24Cr 26Fe 27Co 28Ni 29Cu 30Zn 例 TiO2 例 SczO3④ TiCl3 例TiO 25 Mn 例 MnO4 CrO4² MnO4² 。 例V2O5 VO2 例 @ MnOz 例V2O3 0Cr2O3 5MnzO3例Fe2O3 例 CozO3例NiCl3 例 VO 例CO 例MnSO4 FeO 例CoCh 例NSO & CuSO4 ZnSO4 CuCl 個別氧化數與平均氧化數 (-3) + ( + (2) 從分子式 +1'O 可解得 3 氧化數為 化數必定 例 丙酮 平均 ■ 個別氧化數:在一化合物中,相同種類的原子,其氧化數可能不只一種,例如:丙酮分子 中含有3個碳原- 例題 1 試求下: 化數: (A)硫元 (E)3563 解答

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英文 高中

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三填(10題,每題2 分,共 20 分,答錯無倒扣) 21 for these, though. Why are we so different? Some people hate the feeling of being afraid and avoid situations like visiting ghost houses, watching scary movies, and telling ghost stories around the campfire. Others have a Researchers have found the answer lies in how the chemicals in our brain work. When we are afraid, our bodies can make fight-or-flight response, a reaction that helps us to decide whether to fight or escape. In these situations, our brains combination of hormones. Interestingly, the way our bodies respond to these_20determines whether we get to the movie theater to see a horror film or not. 22 a a have Psychologists say that people who 24 themselves in scary situations need to make sure that they are in a safe environment. For example, people who visit ghost houses have the _25 that they are going to be scared. They may 26 fear when Godzilla or Count Dracula starts chasing them. However, they know the _27aren't real, so they can enjoy the high feeling associated with the fight-or-flight response. Some people also feel a sense of confidence after they live through a 28 situation, even if they know it is false. How about you? When a scary 29__ turns up, will you escape or enjoy the fear? No matter which one you choose, there is no doubt that no one wants to face the $30. (A) horrible (C) release in real life. It's natural that everyone will escape from real danger. (D) tragedy (B) place (AC) expectation (AD) monsters (E) passion (BC) creature (AB) sudden (AE) chemicals

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