
考考你:第3章 海洋
Quiz
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Chemistry
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9th - 12th Grade
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Practice Problem
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Medium
Chemistry Aristo
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8 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪個是從海水提取食鹽(晶體狀)的步驟的正確次序?
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
指示:第2和3題是關於利用「快接」儀器來蒸餾海水。
下列哪項陳述正確描述冷水在利氏冷凝器流動的方式?
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
指示:第2和3題是關於利用「快接」儀器來蒸餾海水。
把防漰沸小粒加入圓底燒瓶的目的是
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
某學生利用左圖所示的裝置,從一個已過濾的海水樣本獲得食鹽。下列哪項或哪些有關這實驗的陳述正確?
(1) 所獲得的食鹽是純的。
(2) 所獲得的食鹽是粉狀的。
(3) 若以乾燥的氯化鈷(II) 試紙測試所獲得的食鹽,會獲得陰性結果。
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
化合物W含有鉀和氯化物。若對W分別進行焰色試驗和硝酸銀試驗,哪個有關這些試驗的結果組合正確?
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
某學生對氯化鈉溶液進行數個試驗。下列哪些是這些試驗的正確觀察?
(1) 它在焰色試驗中產生磚紅色的火焰。
(2) 它在硝酸銀試驗中生成白色沉澱。
(3) 它使無水硫酸銅(II) 由白色變為藍色。
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
指示:第7和8題是有關用圖中所示的裝置來電解海水。
下列哪項或哪些有關這電解的陳述正確?
(1) 生成物X可用於製造人造牛油。
(2) 生成物Y可用作火箭燃料。
(3) 生成物X和生成物Y都可用來製造氫氯酸。
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