
科學Online化學式(Chemical Formula)
Authored by 鴻緯 郭
Chemistry
10th Grade
Used 3+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
化學式是用來描述什麼的方法?
原子組成特定化合物
化學元素的發現歷史
化學反應如何發生
元素的物理性質
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
化學式中的下標通常用來表示什麼情況?
同一元素的數量
原子的質量
不同元素的比例
化學反應速率
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
甲烷的化學式是什麼?
CH2CH2
CH3CH3
C6H12O6
CH4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
乙烯的化學式是什麼?
C6H12O6
CH4
CH2CH2
CH3CH3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在化學式中,@符號通常表示什麼情況?
原子發生核融合
一個原子被捕獲在籠中,但未形成化學鍵
兩個原子形成雙鍵
原子發生核分裂
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