
Qizzles 化學題目
Chemistry
1st - 12th Grade
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
鋇 (Ba) 是周期表中第II族的元素。下列哪個鋇化合物的化學式不正確?
Ba (NO3)2
Ba SO4
Ba Cl2
Ba F
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
砹 (At) 是周期表中第VII族的元素。下列哪個砹化合物的化學式不正確?
H2At
AlAt 3
MgAt 2
CsAt
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪一個是稀硫酸的化學式?
SO4
HSO4
H2SO4(aq)
H2SO4(l)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪個組合正確地表示三氯甲烷(CHCl3)的相對分子質量和式量?
(相對原子質量: Cl = 35.5;C = 12;H = 1)
相對分子質量:119.5 g / 式量:119.5
相對分子質量:119.5 / 式量:119.5
相對分子質量:119.5 g mol-1 / 式量:119.5 g mol-1
相對分子質量:119.5 / 式量:119.5 g
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
下列哪個危險警告標籤應貼在盛有鉀的瓶上?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
考慮下列四種物質,哪種物質有可能是簡單分子化合物?
物質: W | 在熔融狀態下的導電性: 差劣 | 在水的溶解度: 不溶於水
物質: X | 在熔融狀態下的導電性: 良好 | 在水的溶解度: 不溶於水
物質: Y | 在熔融狀態下的導電性: 差劣 | 在水的溶解度: 可溶於水
物質: Z | 在熔融狀態下的導電性: 良好 | 在水的溶解度: 可溶於水
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪種金屬必須透過與碳(C)一起共熱它的氧化物來提取?
鉛
鎂
銀
汞
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