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化學 高中

請問第一題的C,它不能釋放電能是因為加入的是固體,不會影響反應式中物質濃度的變化,所以反應不移動,才不能釋放電能嗎 還有如果加入的是硫酸鋅或硫酸銅溶液,那是不是就可以釋放電能了

182/化學科、指考篇)智慧型復習講義 模擬試題終端機 基礎科學與知識概念題 B (*為多選題) 甲、乙兩同學合力製作一組鋅銅電池。其電池係以鋅棒為陽極,銅棒為陰極,而陽極與陰極 半電池內,分別放入1 M、25 mL 的硫酸鋅溶液與硫酸銅溶液,並以鹽橋聯通各半電池。當 電池放電一段時間後,電壓降為零。下列有關該鋅銅電池的電壓降為零時的敘述何者正確? (A)陰極半電池中的銅離子,其濃度應為零 6E=0,達平衡 (B)此時鋅離子與銅離子的濃度均不會再改變 達平衡 (C)若於陽極半電池中再連接一支大小相同的鋅棒,則電池可繼續釋放電能 (D)若將陽極半電池中的鋅離子與鋅棒,同時倒入陰極電池槽中,則鋅棒的質量會減少,而銅 棒的質量會增加 (E)承選項(D),若繼續等待,電池電壓會呈現負值 192.大考中心 B )2.甲車的電瓶電量不足,無法發動,乙車發動後,利用其電瓶幫甲車充電。下列關於此充電過 程的敘述,何者正確? 193.大考中心 (充電時,電子是從負極流向正極,所以乙車電瓶的負極應連接甲車電瓶的正極 (B)甲車電瓶的二氧化鉛電極發生氧化反應,乙車的則發生還原反應PP (C)充電後,甲車電瓶的陰極和陽極重量都會增加 poss (D)充電後,兩車電瓶的硫酸濃度都會下降 乙池 Pl

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英文 高中

請問第20題為什麼是選C不是選D? a few thing不是值得「被」知道的嗎?為什麼不是選被動用法?

歷區公立高中指考模擬試題解析 teens from their friends. At some level and at some times (and it's the parent's job to spot when), 18. that parents can offer certain kernels of wisdom -- knowledge valued not because it comes from parental authority, but because it comes from parents' own struggles to learn how the world turns. Teens rightly perceive that they must understand not just their parents' world but also 19. they are entering. Yet if allowed to, they can appreciate that their parents once faced the same problems and may remember a few things worth 20. + Ving ( 16. (A) to (B) of (C) on (D) for BI 17. (A) by accident (B) in general (C) with hindsight (D) on cue 18. (A) differentiate (B) advocate (C) puzzle (D) recognize 19. (A) one (B) ones (C) the other (D) the one 20. (A) to know (B) to be known (C) knowing (D) being known 三、文意選填(10分) 說明:第 21. 題至第 30. 題,每題一個空格。請依文意在文章後所提供的(A)到(L)選項中分別 選出最適當者,並將其字母代號劃記在答案卡之「選擇題答案區」。每題答對得1分, 未作答、答錯、或劃記多於一個選項者,該題以零分計算。 D D ♡ 20_04) to know For many families, an exotic summer getaway means a trip overseas. For one in particular, it means living on Mars. Martian time, 21.X. Since the landing of NASA's newest Mars rover, NASA flight director David Oh's family has taken the L 22.) step of joining him in syncing their biological clock to Martian time. “We all feel a little sleepy, a little jet-lagged all day long, but everyone is doing great," said Oh's wife. hours which is the

已解決 回答數: 1