初三 第3章 金属和非金属
9th Grade
•15 Qs
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初三 第3章 金属和非金属
Quiz
•
Science
•
9th Grade
•
Medium
W.Y. Tan
Used 236+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
下列金属制品的使用，利用其导热性的是___。
火锅
勺子
电线
奖牌
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
下列金属活泼序最强的是____。
镁
铝
铜
铁
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
下列不能跟稀盐酸反应产生氢气的是___
锌
银
铝
镁
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
”真金不怕火炼“主要是指黄金的___
熔点高
延展性好
有金属光泽
化学性质稳定
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
将红色的铜丝放在本生灯火焰的外焰上加热，铜丝表面变为黑色。下列说法错误的是___
红色铜丝表面变黑，因为生成了氧化铜
红色铜丝表面变黑，因为铜发生了还原反应
把黑色的铜丝插入稀硫酸中，溶液中会出现蓝色
红色铜丝表面变黑后，质量将增大
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
NaOH + HCl --> NaCl + H2O.。。.是什么化学反应
置换反应
化合反应
分解反应
中和反应
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
氢气燃烧产生水分是什么化学反应?
置换反应
化合反应
分解反应
中和反应
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