問題詳情
1.在一大杯水中加入適量氫氧化鈉,通電做電解實驗,並觀察到在兩電極上冒出大量氣泡,試問下列敘述何者正確?
(A) 該反應式為 2H2O → 2H2+O2
(B)正極產生可燃性氣體,燃燒產生爆鳴聲及淡藍色火焰
(C) 負極產生助燃性氣體,使線香燃燒更旺
(D) 反應過程中 pH 漸減。
(A) 該反應式為 2H2O → 2H2+O2
(B)正極產生可燃性氣體,燃燒產生爆鳴聲及淡藍色火焰
(C) 負極產生助燃性氣體,使線香燃燒更旺
(D) 反應過程中 pH 漸減。
參考答案
答案:A
難度:計算中-1
書單:沒有書單,新增
內容推薦
- 【題組】胖老爹是清領前期的臺灣人,有一次他從打狗到雞籠旅遊,會經過(甲)淡水廳(乙)彰化縣(丙)鳳山縣(丁)諸羅縣(戊)臺灣府。請問:其路線順序應為下列何者?(A)戊丙丁乙甲(B)戊丙乙丁甲(C
- 【題組】請問:當時清政府基於管理需求增置許多行政區域,其中以何者最晚設置?(A)淡水廳(B)彰化縣(C)澎湖廳(D)噶瑪蘭廳。
- 【題組】嘉慶年間,是誰率領漢人開墾蛤仔難,使當地漢人移民增多?(A)吳沙(B)曹謹(C)施世榜(D)張達京。
- 【題組】雍正年間,台灣本島新增一縣一聽,是受到哪個事件的影響?(A)三藩之亂(B)施琅攻台(C)朱一貴事件(D)郭懷一事件。
- 【題組】45「熱蘭遮城」位於今日何地?(A)基隆(B)安平(C)淡水 (D)高雄。
- 【題組】上文何斌所言,可能是對何人所說?(A)鄭芝龍(B)鄭成功(C)鄭經(D)鄭克爽
- 【題組】關於此古蹟的說法(甲)屬於民間興學的成果(乙)與陳永華的建議有關(丙)是全台第一座孔廟J)學生在大成殿上課。請問正確的有? (A)甲乙丙丁(B)甲乙丙(C)乙丙丁(D)乙丙。
- 【題組】當時這座府城孔廟,位於哪一行政區中?(A)臺灣府(B)臺南府(C)承天府(D)臺中府。
- 【題組】承上題,此段話最有可能為誰所陳述? (A)施琅(B)吳三桂(C)朱一貴(D)陳永華。
- 【題組】資料(乙)主張「議留」臺灣的主要考量為何?(A)臺灣礦產豐富(B)臺灣戰略地位重要(C)臺灣人口眾多(D)臺灣族群和諧。
內容推薦
- ( )孟德爾為了研究性狀遺傳的原理,選用豌豆作為實驗材料,請問豌豆具備哪些特性,所以是適合遺傳實驗的好材料?(甲)生長期短(乙)容易栽種(丙)特徵明顯(丁)授粉可以人為控制。(A)甲乙丙(B)甲
- Adam: Look! There’s an new iBhone 8 on the table. Lisa: Don’t touch it. It doesn’t ________ to y
- We have one Earth. We shoud do something________ to protect it.(A) sharp (B) helpful (C) honest
- Before making a cake, you should________ up the oven before you put the dough into it.(A) heat (
- Bryan and Mandy are getting married. Their _____ will be held this Sunday.(A) tunnel (B) scenery
- Tayrn has made up her mind, and she won’t change her _____ about this project.(A) opinion (B) tr
- Tracy: You speak good English. Have you ever studied abroad before? Sean: Yes, _____. One and ha
- Penny loves Mt. Ali very much. She ________ there three times since she graduated from universit
- Miss Lin has worked at TYK for eight years. She has been a teacher________ .(A) on Mondays (B) a
- Becan says________ knowledge is power. Wisdom comes form reading.(A) what (B) that (C) there (D)
- Using plastic straws and bags are bad for the earth, _____?(A) aren't they (B) are they (C)
- Eric likes Taiwanese snacks. He should go to Shilin night market if he wants to try some, ______
- Halloween is not only a day for kids to dress up _____ a day for adults to play tricks on each o
- Yang, Jun-Han feels _______ about running because he thinks running is the most _____ thing to h
- Teacher Megan has _____ many places for teaching. But she teaches in Junior High in Taiwan now.(
- 【題組】(A) fell in love (B) had fight (C) lost hope (D) felt surprised
- 【題組】(A) best classmates (B) great cooks (C) mean partners (D) close friends
- 【題組】(A) is it (B) did it (C) does it (D) do we
- 【題組】(A) Everything will be good in the end. (B) An apple a day keeps the doctor away.(C) You shou
- 【題組】Where is Wu Kang now?(A) At wise man's house. (B) Under a lemon tree. (C) On the moon (
- 【題組】Why did the wise man make Wu Kang chop the tree every day?(A) Because he knew Wu Kang liked
- 【題組】Which is True about the reading?(A) The seed of cassia tree can make Wu Kang immortal.(B) Wu
- 【題組】41 What can't you do with SNOWY?(A) Take a picture with rabbit ears. (B) Share your videos
- 【題組】Which is True about the reading?(A) You can find your friends if you have their QR codes.(B)
- 【題組】44 Which country is using Cross as a symbol in its flag? (A) Turkey (B) Brazil. (C)Eritrea (D) N