S3第三段測試複習
Authored by WW Kuan
Chemistry
9th Grade
7 Questions
Used 1+ times
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
請計算出八水高錳酸鉀中水分子所佔的質量分數____.(答案保留四捨五入後小數點後一位)
H-1 K-39 O-16 Mn-55
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪一種氣體不可用於填充到燈泡中?
氮氣
氦氣
氬氣
氧氣
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列元素（或原子團）在形成化合物時一般均顯示－2價的是
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
利用質量守恆定律可解釋以下現象：10g的冰熔化成10g的水。
True
False
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
空氣中含量最高的前三位氣體為氮氣，氧氣和＿＿＿。
氬氣
二氧化碳
氦氣
臭氧
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
利用分餾法對混合物進行分離，是根據混合物中各組分的＿＿＿不同。
沸點
密度
熔點
溶解度
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