
chem19
Authored by Hang Ip
Chemistry
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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
考慮圖片所示的簡單化學電池:下列哪項有關以上電池的陳述正確?
電流從鋅片經外電路流向銅片。
銅片的質量減少。
鋅片質量減少。
電子在硫酸銅(II) 溶液中流動。
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
該電池的正電極是什麼?
碳棒
鋅
糊狀氯化銨
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪項有關該電池的陳述正確?
它的電壓會在放電時迅速下降。
用於高耗電量的裝置時,它的表現良好。
它的最高電壓是 1.0 V。
它的有效壽命很長。
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
鹼性錳電池的陽極是什麼?
碳
鋅
氫氧化鉀
氧化錳(IV)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪幅圖可用來表示用於手提音樂光碟 播放器時鋅碳電池電壓的變化?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪項有關氧化銀電池的陳述正確?
它可再充電。
放電時它能保持穩定的電壓。
它可輸出高電流。
它常用於手提音樂光碟播放器。
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪幅圖可用來表示鹼性錳電池用於玩具車 時電壓的變化?
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