
s3_chem_HYE_revision_A_CHI
Authored by Steven Wong
Chemistry
9th Grade
Used 17+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪項有關化合物的陳述不正確?
成分元素只可利用物理方法來分離。
化合物的性質與成分元素的性質截然不同。
成分元素的質量有固定比例。
生成化合物時通常會釋出或吸收熱能。
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
下列哪項不是氧的性質?
它使石灰水變為乳濁。
它熄滅有餘燼的木條。
把燃燒中的木條放入氧中,會發出「卜」的聲響。
它重燃有餘燼的木條。
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
硫化鐵(II) 是化合物,原因是
它由多於一種元素組成。
它不具磁性。
它會與酸反應。
它由多於一種元素經過化學方式組合而成。
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
元素L的原子序和質量數分別是15和31。元素的原子含有
16個電子、16個質子和15個中子。
15個電子、16個質子和15個中子。
16個電子、15個質子和16個中子。
15個電子、15個質子和16個中子。
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪項有關次原子粒子的陳述不正確?
所有原子均含有質子、中子和電子。
原子的質量集中在原子核。
中子是電中性的。
質子和中子的質量大致相同。
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
下列哪些有關20Ne原子和22Ne原子的陳述正確?
它們的質子數目相同。
它們的電子數目相同。
它們具有相同的化學性質。
它們具有相同的物理性質。
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
28Si: 92.2%
29Si: 4.7%
30Si: 3.1%
硅的相對原子質量是多少?
28.0
28.1
28.2
28.3
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