二氧化硅的化学符号

初三平测:矿物

Quiz
•
Chemistry
•
9th Grade
•
Medium
LIM KANG林惟康
Used 13+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列化学反应中会放出非常大量的热的是?
生石灰与水混合形成熟石灰
铁氧化成氧化铁
氧化铜还原成铜
水电解成氢气和氧气
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列物品不适合用玻璃瓶盛放的是?
浓硫酸
氢氧化钠溶液
饱和食盐水
白开水
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
将石灰石(碳酸钙)加热会得到下列哪种物质?
生石灰
熟石灰
氢气
氧气
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
矿物具有以下哪种特征?(多选题)
有机物
具有晶体结构
一定是天然形成的
都是固体
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪种元素比较可能是以化合物的形式存在于矿物当中?
金
钙
银
铂
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下各种方法当中辨认“纯金”比较准确的是?
观看色泽
称量重量
拿嘴来咬
比较密度
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