
Ch09(9.3) 常見的酸和鹼 L2
Quiz
•
Science
•
6th - 8th Grade
•
Hard
QTSSCI QTSSCI
FREE Resource
7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. 若在鹼中慢慢地加入酸,下列哪項並不會發生?
A. 混合物的pH值下降。
B. 混合物的温度上升。
C. 混合物會釋出無色的氣泡。
D. 混合物中會有水產生。
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2. 酸鹼中和時,會產生甚麼物質?
A. 水
B. 二氧化碳
C. 氫
D. 氧
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3. 酸可以用來保存食物,其原因是
A. 酸可以降低食物的pH值。
B. 酸令食物帶有酸味。
C. 酸可以中和食物中的鹼。
D. 微生物不能在酸性環境中生存。
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4. 若泥土過酸,我們可在泥土中加入甚麼,以改善此狀況?
A. 氫氧化鈉溶液
B. 熟石灰
C. 硫酸
D. 水
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
把答案填寫在橫線上。
1. 在中和作用中,酸與鹼發生反應,形成水和 __________________。
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
把答案填寫在橫線上。
2. 在中和作甪中,物質的總 __________________ 在反應前後維持不變。
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
把答案填寫在橫線上。
3. 黃蜂刺傷的傷口帶有鹼,我們可以用 __________________ 物質(例如醋)來處理傷口。
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