1. 當鐵粉和硫磺粉一起被加熱時,產生的新物質稱為甚麼?

Ch13(13.4) 從原子到材料 L1

Quiz
•
Science
•
1st Grade
•
Hard
QTSSCI QTSSCI
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A. 鐵、硫混合物
B. 氧化鐵
C. 硫酸鐵
D. 硫化鐵
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2. 下列哪些過程涉及化學變化?
(1) 光合作用
(2) 燃燒木頭
(3) 冰塊熔化
A. 只有 (1) 和 (2)
B. 只有 (2) 和 (3)
C. 只有 (1) 和 (3)
D. (1)、(2) 和 (3)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4. (延展) 在以下的化學反應式中,左右兩邊各有多少個氧原子?
2H2O2 → 2H2O + O2
A. 3
B. 4
C. 5
D. 6
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
1. 在水的電解過程中,在負電極收集到的氣體是 ________________________。
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
2. 當鐵與硫一起加熱後,會形成硫化鐵。這是一個 ________________________ 變化的例子。
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
3. (延展) 在化學反應式中,反應物在箭號左方, ________________________ 則在箭號右方。
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