
Ch09(9.49.5) 常見的酸和鹼 L1
Authored by QTSSCI QTSSCI
Science
6th - 8th Grade

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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. 鎂與稀氫氯酸發生反應,會產生一種氣體。這種氣體有甚麼性質?
A. 重燃帶餘燼的木條。
B. 燃燒時發出爆鳴聲。
C. 使石灰水變成乳白色。
D. 帶有刺鼻的氣味。
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2. 下列哪項關於濃酸的敍述是不正確的?
A. 濃酸通常比稀酸更具腐蝕性。
B. 濃酸與金屬發生反應時,會產生鹽和二氧化碳。
C. 濃酸具有高度腐蝕性。
D. 使用濃酸時,必須採取安全措施。
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3. 試劑瓶盛有濃氫氧化鈉溶液。這個試劑瓶應貼上哪個危險警告標籤?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4. 下列哪些是使用清潔劑的正確方法?
(1) 混和不同的清潔劑,以增強它們的清潔能力
(2) 確保清潔劑遠離火種
(3) 佩戴防護手套
A. 只有 (1) 和 (2)
B. 只有 (1) 和 (3)
C. 只有 (2) 和 (3)
D. (1)、(2) 和 (3)
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
把答案填寫在橫線上。
1. 酸雨主要是由空氣中的酸性污染物導致,這些污染物包括 __________________ 和 __________________。
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
把答案填寫在橫線上。
2. 把雞腳在濃氫氧化鈉溶液裏一天,雞腳會分解。這顯示了濃氫氧化鈉溶液的 __________________ 性。
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