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科學Online化學式(Chemical Formula)

Authored by 鴻緯 郭

Chemistry

10th Grade

Used 3+ times

科學Online化學式(Chemical Formula)
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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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