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化學 高中

108指考第六題 請問D選項,為什麼解答說不反應?H2O2不是常見的氧化劑和還原劑嗎?

pur min.com.tw 步驟中,加入的試劑X是什麼? (B) HSO3 (C) NaOH (D) H₂O₂ (E) (B) ・選修化學(上) 第5章 氧化還原反應 選修化學(下) 第6章 無機化合物 ·測驗考生是否具備氧化劑與還原劑的觀念,以及碘的性質 中 鹵素元素在氧化還原反應中多扮演氧化劑的角色,在酸 定,在鹼性條件中則易發生自身氧化還原反應 (A) ①:I+HCl→ 不反應 (B)H.SO, 可作為還原劑與I反應Ⓤ:I+HSO3+HO→2 HO,可作為氧化劑與HI 反應:2HI+HO: →I+2H (C):31 +6OH →SI +IO +3HO 在鹼性條件中②:I+HO: → 不反應 (D) : +HO: → 不反應 (E): I+ I → 不反應 故試劑 X 為 H.SO。 B 草稿 -De D Q x Lo mattth 09-108指考化學試卷定稿 physical 1₂ 黃褐色 6. 在①的步驟中,加入的試劑 X 是什麼? (A)HCl (B)H,SO3 (C)NaOH 7. 在③的步驟中,加入的試劑 Y 是什麼? (A)HCl (B)H,SO3 V x chemistry 無色 (C) NaOH T 化學考科 6-7為題組 做完秒錶反應後,為了要同學探究實驗過程中的試劑與其化學反應,張老師又 用一個燒杯,演示了一組實驗。簡要過程如下:取一個盛有去離子水 100 毫升 的大燒杯,放置於攪拌器上,使燒杯內的水穩定攪拌,然後滴入碘酒,使溶液 呈現黃褐色。 ④加入鹽酸溶液,黃褐色復現 fe ①加入X試劑,黃褐色褪去,溶液呈現無色。 ②加入雙氧水,黃褐色復現。 ③加入Y試劑,黃褐色褪去,溶液呈現無色。 其流程如右圖,①②3④為 反應過程序號,依據實驗回 答6-7題: Red +X +HzOz + Y +HCl 1 4 Fő 黃褐色 (D) H,O, 3 無色 1₂ → 1- x (E) 1₂ 09-108指... PE 共7頁 Da 黃褐色 (D) H,O, (E) I, 8. 林同學以儀器量測某穩定元素,其組成為雙原子分子,測得其分子量僅有 158、160 及 ✓ 162 三個數值,且對應的分子含量比約為1:2:1。下列敘述,哪一項正確 (A)此元素有三種同位素,其對應原子量為79、80和81 x2 (B)三個分子中,對應分子量為162的分子所含質子數最多 103 81+79.

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英文 高中

想請問第17題和23題的解釋 謝謝!

A16 第16至20題為題組 Tai Chi Chuan is a type of ancient Chinese martial art. People benefits. This centuries-old Chinese mind-body exercise is now gaining popularity in the United States. Tai Chi mainly for its health The most familiar aspect of Tai Chi Chuan is the hand form, which is a series of slow-flowing movements with poetic names (These movements, forming an exercise system) 17 "dragons stirring up the wind" and "wave hands like clouds." or the Qi energy, in one's body. 18 one to effortlessly experience the vital life force, Tai Chi Chuan is not only a physical but also a increase communication between the body and the mind and enable one to deal with other people more 19 exercise. Psychologically, this exercise may effectively. It 20 stress and creates calmness and confidence. Relaxation and a feeling of joy are among the first noticeable differences in a Tai Chi student. 16. (A) practice 17. (A) from 18. allow B 19. (A) formal C20. (A) imposes 0 A 21. (B) consult (B) like (B) allows (B) mental (B) offends (A) Therefore C22. (A) officially 23. (A) approach FACE 24. (A) replace & 25. (A) unlucky 16 (B) Nevertheless (B) mutually (B) approaching (B) disguise Billogical 或畫記多於一個選項者,該 (C) display (C) between C) allowed (C) social (C) reduces 第 21 至 25 題為題組 Much like the dove and robin, the bluebird is considered a very lucky sign in most cultures, a woodpecker, when seen near the home, is regarded as a particularly when seen in the spring. 21 good sign. In contrast, the peacock is not 22 seen as lucky. In places like India, the peacock is considered lucky because the great many "eyes" on its feathers are said to alert it to 23 evil. Peacocks are also highly valued in China and Japan, where they are kept as symbols by the ruling families to 24 their status and wealth. However, the peacock receives only scorn from the rest of the world. The feathers of peacocks are considered the most 25 part of the bird because the eye-shaped markings on them are associated with "evil eyes." To bring the evil eye into the home is thus believed to invite trouble and sorrow. (C) Roughly (C) universally (C) approached (D) manage (D) regarding (D) allowing (D) global (D) disturbs (C) distinguish impossible (D) Similarly (D) eventually (D) be approaching (D) represent (D) unnecessary

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英文 高中

為什麼第7題不選D選A,求解??

2676 1st: 43 The scientists decided to light fires that would burn off the gas, figuring that it would only be a few weeks 4. the gas was all gone. They evidently made a miscalculation, as the fires have been burning constantly for over 40 years. In 2010, the president of Turkmenistan VR recommended that the Stater* (should) Ver 5. filled in to limit the amount of gas that is burned. However, no action has yet been taken. Thus, the Door to Hell remains firmly open, drawing tourists from all over the world to gaze into its fiery depths. 事 3. to those who live nearby. 1. Adultimately (B) respectively 2.(A) coming down ( (B) blending in 倒塌 (A) menace FATA 4. (A) until 5 A) was 3 fa (C) approximately (C) giving in 威育恐嚇 (B) hypocrisy 飾 (C)facility 設施) (B) when (C) before to be (B) be Partid 199 a 201 (D) constantly (D) going out Right (D) legacy 產 Dif (D) had been While scientists are 6. to find ways of improving plants, medicine, and human beings, many arguments are being 7. . Some arguments may be personal, social, or economic but more likely, they tend to be moral. And it is believed that genetic engineering will keep on mmm. 工程学 changing us throughout this century. 8. genetic In general, people question the whole use of genetic engineering. engineering will improve the way we grow food and care for our environment, people still question genetic engineering. What may be questioned is how companies may 9. their 2023/01/03 19:55 use. and h how is, c que exp sce in te re C

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