
課題三 金屬

Quiz
•
Chemistry
•
7th - 9th Grade
•
Hard
Chemistry Aristo
Used 40+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1 mol的硝酸鎂含有
A. 2 mol的陽離子。
B. 2 mol的陰離子。
C. 3 mol的原子。
D. 9 mol的離子。
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪項有關陽極電鍍的陳述正確?
A. 陽極電鍍可提升鋁製品的強度。
B. 進行陽極電鍍後,整件鋁製品會變為氧化鋁。
C. 陽極電鍍可改變鋁製品的形狀。
D. 陽極電鍍是化學變化。
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
把一塊銅加入下列溶液中時,哪種溶液會變為藍色?
A. 硝酸銨溶液
B. 硝酸鈣溶液
C. 硝酸鐵(II) 溶液
D. 硝酸銀溶液
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪種化合物中鐵的質量百分比最高?
(相對原子質量:N = 14.0、O = 16.0、S = 32.1、Cl = 35.5、Fe = 55.8)
A. 氯化鐵(II)
B. 硫酸鐵(II)
C. 硝酸鐵(III)
D. 氧化鐵(III)
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
圖中顯示一個用來探究氮和空氣對銹蝕的影響的裝置。
把裝置靜置五天。試管X和Y中的水位分別有甚麼變化?
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
把特定質量的銅放在坩堝內強烈加熱。下列哪幅坐標圖顯示坩堝內物質的質量隨時間的變化?
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
銅可從黃銅礦 (含有CuFeS2的礦物) 獲取。要獲取1.5 g的銅,所需黃銅礦的最小質量是多少?
(相對原子質量:S = 32.1、Fe = 55.8、Cu = 63.5)
A. 2.3 g
B. 3.3 g
C. 4.3 g
D. 5.3 g
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