
0831國二理化週考 跨科主題+週期表
Quiz
•
Physics, Science, Chemistry
•
8th Grade
•
Practice Problem
•
Easy
何 玄
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20 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
亞芯作實驗,將醋酸倒入裝有大理石的錐形瓶中,發現產生許多氣泡。亞芯要使用下列哪一項測試,才能確認產生的氣體是二氧化碳?
以溼石蕊試紙置於冒出的氣體上
以點燃的火柴置於冒出的氣體上
將冒出的氣體通入澄清的石灰水
將冒出的氣體通入氫氧化鈉水溶液中
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
下列各種氣體的用途,何者不適當?
二氧化碳供植物行光合作用
氮用來製造氨及肥料
氖用來充填霓虹燈
純氧用來充填白熾燈泡
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
一般我們都採用排水集氣法來收集氧氣,使用這種方法主要是依據氧的哪一性質?
氧氣密度較空氣大
氧氣為無色氣體
氧氣不易溶於水
氧氣有助燃性
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
有關空氣的主要組成及其特性或用途如圖,下列有關其化學式的表示,何者正確?
甲的化學式是N2
乙的化學式是CO2
丙的化學式是Kr
丁的化學式是He
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
在常壓下,不同溫度時,1mL的水中可溶解甲、乙、丙、丁四種氣體的體積如下表:
依據表中資料,在常壓、常溫下,下列何者最不適合使用排水集氣法收集氣體?
甲
乙
丙
丁
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
附圖中,左圖為地球乾燥空氣的組成氣體體積比例圖,右圖為秉鈞製備某氣體的裝置示意圖,反應開始後,前30秒的氣體不收集,秉鈞後來所收集到該氣體,為左圖中的哪一個氣體?
甲
乙
丙
丁
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
如附圖所示,地球地表大氣的組成由甲、乙、丙和丁代表。關於這四個組成成分的說明,下列何者正確?
甲:以單原子形式存在空氣中的惰性氣體
乙:不可燃也不助燃,常用於填充食品包裝,以避免氧化腐敗
丙:具有助燃性,化學性質活潑,為動植物呼吸所需的氣體
丁:為混合氣體,包含有二氧化碳、氫氣等氣體
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