
3(19)
Quiz
•
Chemistry
•
6th - 8th Grade
•
Practice Problem
•
Hard
誠徳 三木
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5 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
電解質水溶液に銅板と亜鉛版をつけ、導線でつないだとき、電子はどちらから、どちらへ移動しているか?
銅→亜鉛
(導線中を)
亜鉛→銅
(導線中を)
決まってない
亜鉛→銅
(水溶液中を)
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
電解質水溶液に銅板と亜鉛板をつけ化学電池をつくったとき、溶液中に増加するイオンは何か。
亜鉛イオン
Zn+
銅イオン
Cu2+
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
うすい硫酸に亜鉛板と銅板でつくった電池で銅板にはどのような変化がおこるか
変化しない
溶けだす
水素が発生する
赤褐色のものが付着する
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
うすい硫酸に亜鉛板と銅板でつくった電池で亜鉛板にはどのような変化がおこるか
変化しない
溶けだす
水素が発生する
赤褐色のものが付着する
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
ボルタ電池の弱点はどれか?
銅板のまわりに水素が発生して、水素イオンが電子をもらえなくなり電圧が下がる
亜鉛板のまわりに水素が発生して、水素イオンが電子をもらえなくなり電圧が下がる
銅板のまわりに水素が発生して、水素イオンが電子をあげられなくなり電圧が下がる
亜鉛板のまわりに水素が発生して、水素イオンが電子をあげられなくなり電圧が下がる
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