酸与氢气
Quiz
•
Science
•
6th - 8th Grade
•
Practice Problem
•
Hard
Chung Tay
Used 28+ times
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26 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
下列何者是酸的共同特点?(可复选)
pH >7
pH<7
紫色石蕊试液变红
紫色石蕊试液变蓝
酚酞试液保持无色
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何者是酸的通性?(可复选)
pH>7
电离后一定产生氢离子
酚酞试液变红色
电离后一定产生氢氧根离子
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
酸和碱反应会产生( )。
盐和水
盐和氢气
碱和水
碱和盐
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
酸和碱的反应被称为( )。
中和反应
分解反应
化合反应
复分解反应
置换反应
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何者不是化学的中的四大反应类型?
中和反应
置换反应
复分解反应
分解反应
化合反应
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何者不是酸?
NaHCO3
H2CO3
HCl
H3PO4
CH3COOH
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何者是中和反应?
硫酸+氢氧化钠
盐酸+碳酸钠
碳酸+铁
盐酸+氧化铜
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