
J3_单元2(一)
Authored by W.Y. Tan
Science
9th Grade
Used 10+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪一些不是碱性物质?
醋
肥皂
石灰水
氨水
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
____离子带出碱性的性质
氢氧根
氢
氯
硫酸根
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
无色的酚酞试剂接触碱性物质后,会。。。
没有变化
变成红色
变成蓝色
变成橙色
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
碱性物质会让蓝色石蕊试纸变成红色。
对
错
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
氢氧化钠可以用于过滤工厂排出的____。
二氧化碳
二氧化硫
氧化铁
臭氧
6.
MULTIPLE SELECT QUESTION
1 min • 1 pt
下列哪一种反应会出现絮状物?(复选)
氯化铜 + 氢氧化钠
氯化铁(III)+氢氧化钠
二氧化碳 + 氢氧化钙
硫酸 + 氢氧化钠
7.
MULTIPLE SELECT QUESTION
1 min • 1 pt
系列哪一项是盐?(复选)
NaCl
H2SO4
NaOH
CaCO3
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