
22-23 S5 下學期 考試跟進 pre-test
Authored by Hoi Lam
Chemistry
9th - 12th Grade
Used 1+ times

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25 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
32.0 g的甲烷分子的摩爾數是多少?
(相對原子質量:H = 1.0,C = 12.0)
0.5 mol
1 mol
1.5 mol
2 mol
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
在Na2SO4 中,Na 的質量百分比是多少?
(相對原子質量:O = 16.0,Na = 23.0,S = 32.1)
16.2%
22.6%
32.4%
46.0%
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
0.769 mol
2.5 mol
32.5 mol
65 mol
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
0.3 mol
0.511 mol
1.0 mol
1.2 mol
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
在200.0 cm3 的2.00 mol dm–3 Na2CO3 溶液中,Na2CO3 的摩爾數是多少?
0.40 mol
400 mol
10 mol
0.01 mol
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
把鋅加入檸檬汁時,有甚麼氣體釋出?
氫
氧
二氧化碳
沒有氣體釋出
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
把碳酸氫鈉加進稀硫酸時,有甚麼氣體釋出?
氫
氧
二氧化碳
沒有氣體釋出
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