請問第七題怎麼寫？

CHEMISTR7 題組 6~7 近年來人人莫不聞「紫爆」而色變,事實上紫爆是一種空氣汙染的指標,我國環 保署所建立的「PM2.5 濃度指標」將汙染情况分為絲、黃、紅、紫四種警示顏色等級, 其中紫色就是最嚴重的警戒狀態。根據研究指出,當空氣中PM 的濃度長期高於10-2 mg/m²時,就會對人體造成極大的危害並導致死亡風險的上升,因此,世界衛生組織 在2005 年公布的空氣品質準則中,訂定PML的限制為10²mg/m²,回答下列問題: )6PM的意義為何? (A)懸浮粒子的濃度約為2.5 ppm (B)懸浮粒子的濃度約為2.5 mg/m² (C)每 m²的空氣中含有2.5 個懸浮粒子 (D)直徑約為2.5×10m的粒子 題組8~9 (E)體積約為2.5×10m²的懸浮粒子 ( ) 7.若每m²空氣的質量為1.25 kg,則將10-² mg/m²換算為質量百萬分點濃度 125000 mg=125 0.01 09 0.001 +Emgyy22 - 時,相當於多少 ppm ? (A)8×10- (B)8×10-²(C)8×10 (D)8×10-7(E)8×10* mg -15² ** 109 1.25 (水湖針對多水而已 E身氣可自平流層下到: ( ) 11某先進自來水廠提供p 純水將其能釋至原有體。 (41x10²32x100m 多選題 ( )120°C時,若一汙水 述,哪些正確?(3 (A)此汗水中有機 (B 此汗水之 COL (C)若此汙水中之

請問為什麼第一題是practicable 而不是capable><

are one billion nanometers in one meter, you can get an idea of how impressive this technology really is! Even though this fabulous technology has been around for almost 100 years, we have only recently been able to experience both its benefits and i cogmignal ovil Asqa niso I e maoney but also area Stopesugar have characteristics These days, nanotechnology is used primarily to make things stronger, stiffer, and smoother. Due to their tiny size, nanoparticles increase the overall surface a of an object, and that acts to give the object special properties However, nanotechnology is also used in the field of biochemistry. One possible of nanotechnology in the future is in the field of robotics. It might be feasible for tiny nano-robots, or "nanobots," to be produced that could easily perform tasks in a very small scale. Each of these nanobots would be so small that you would need a special microscope to see them. Because of their small size, however, a great deal of them DEST OF 90 MOBST U simple math, inc ped programa Cindy a button nose Qué oyes, would be needed to perform a task. furod One drawback to nanotechnology is that the structures are so small that they pose some health and environmental risks. Because of their size, they can float around in the air and enter our lungs without our knowing about it. The effects of this are not yet known, but in the future, if the use of this sort of technology becomes more common, some specialists believe that we may suffer from various illnesses. Regardless of the risks, however, it seems that nanotechnology is something that will be with us for a long time. davol odi ni "11" nuomong ot D Tolo hazards. or (A) affordable (B) practicable (C) visible 14 What does the passage mainly discuss? (A) A new technol use 13 The boldfaced word "feasible" in paragraph two is closest in meaning to ghib10:56 Ap (D) capable

請問一下圈起來的部分是什麼意思

已含 B) x (A) 【97 明倫、98 南女中、100 瑞祥、102 大同、103 延平】 2. M、O 兩元素所形成的MO2、M,O3兩化合物,含 ○ 的重量百分率分別為 x%與 y%,則x 與 y的關係式為下列何項? 200y (A)x = - 300 - Y M MO2 100-X (B)x = M203 100y 200y 300 + y X 100-X 100X (C)x = = 3 2 poy 類題→我們應該有恆心,猶其要有. 400y 300 - Y (D)x = - 400y 300 + y Voox x 100-X// 1X=400% 300+1 【108 附中】 班 Pro Chemistry

想知道錯在哪裡？

(C) It is said that love is a drug. But is it just a drug? That is the argument of Larry Young, a professor at Emory University in Atlanta, Georgia, saying that love can be explained by different *neurochemical events in the brain. If it is true, he says, people will no longer have to rely on P *oysters or chocolates to create a loving mood. Instead, it will be possible for scientists to develop some *chemicals that would make people fall in love with the first person they see. As for those who have fallen in love with someone they shouldn't have, there could be a medicine to the love that can't be returned back. The scientists even expect a "love test" by genes to see whether a possible couple can lead to a happy married life. In a recent study, researchers have found that 一升高二

請問第3題 and不是對等連接詞 所以兩邊動詞做一樣的變化嗎 求解🙏

(A) wrapped (B) wrapping (C) to wrap (D) having wrapped (6) 3. Processing plastic can lead to the release of harmful chemical substances into 瓶裝水 A the water contained in the bottles. The chemicals can be absorbed into the body and they)___ physical discomfort. Bcausing (A) cause (B) 4. Baseball seems mental, like chess, and (C) caused it a~ ) to cause those fans that like a quiet,

偶極矩、偶極-偶極力 是什麼 有沒有比較白話一點的解釋方法

0= c = 0· c 20)非極性(一樣)→分散力、 E S=C=S₁ 0=C=S.栢柱(22不一樣). 23. 已知在 1 大氣壓,CO,無沸點,CS,及 COS 的沸點分別為46℃及-50°C。下列相關的敘 述,哪些正確? 108年化學考科試題 CHEMISTRY (A)三個分子均為非極性分子 (C)三個分子內所有的鍵結均具有偶極矩 (E) COS 分子間主要的作用力為偶極–偶極力。 要有一建,且需有F0.人 (B)三個分子均可與水分子形成氫鍵, (D)CS,分子間主要的作用力為偶極–偶極力

請問濃度越大反應速率不是應該更快嗎？為什麼B是對的 希望幫我解答的好心人也可以畫出其它選項圖形謝謝

在選 已在 B * 1,3-丁二烯(CH)為合成橡膠的重要原料,此化合物亦可進行雙聚反應,其反應式為: 驗的作圖? 2CH⑥ → CH。某生測量其反應速率,得知此反應為二級反應。下列哪一項可能為此實 (A) (B) [C4H6] A [C4H6] At 時間(t²) (E) [C4H6] A [C4H6] At [A [C.H.] 1² At [C4H⑥]} [C4H6] 7. 三個芳香族化合物的反應結果如圖4所示,其中R'、 (C) CHEMISTRY [C4H6] 時間(t)

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.

求解(B).(C)！謝謝！

9 26.下列相關敘述哪些正確?(應選2項) (A)用碘液染色洋蔥表皮細胞,可以觀察到葉綠體X(B)甲基藍染色可以讓植物的大型液泡呈現 紅色 (C)豬肝細胞使用碘液染色可以看到紅色的肝糖顆粒X(D)洋蔥根尖細胞經過染色後就 染色死亡 無法再行細胞分裂了 (E)經過甲基藍染色的豬肝細胞都只有一顆細胞核 D 有些一丁以上 比 UD

請問這題🙏

5 A Chemistry liberator 環丙烷在高溫時可轉變成丙烯,反應熱為33 kJ / mol,活化能約為 270 kJ/ mol。同溫時,環丙烷與丙烯之動能分布曲線幾近相同,下列哪一圖示可定性 描述上述反應中,正、逆反應在不同溫度下的動能分布曲線?(垂直虛線為反 應所需之低限能值) 正逆 應應 (A) 粒子數目 粒子數目 3 477 °C **577°Ch 577 °C 477 °C 粒子動能 逆反應 正反應. 應應 粒子動能 (B) (E) 粒子數目 粒子數目 477 °C 577 °C 逆反應 正反應. 應應 粒子動能 577°Ch 正逆 477°C 反反 應應 粒子動能 粒子數目 577 °C 正反應 逆反應 ^ 477 粒子動能