【科学】 第八课- 酸与碱 02/09/2021
Authored by Yuin Yi
Science
3rd Grade
Used 6+ times
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14 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
以下哪项是石蕊试纸的功用？
观察物质的形态
测量物质的质量
测试物质的化学性质
确认物质的导电能力
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
用 红色石蕊试纸 测试这种物质的溶液，你会观察到什么结果？
变成蓝色
没有变化
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
用 蓝色石蕊试纸 测试这种物质的溶液，你会观察到什么结果？
变成红色
没有变化
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
上图显示一种物质。
以上哪项有关上图中的物质的说明是正确的？
尝起来有酸味
会使蓝色石蕊试纸变红
会使红色石蕊试纸变蓝
不会改变石蕊试纸的颜色
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
上图显示一项有关物质的化学性质的实验结果。
根据上图，溶液X和溶液Y的化学性质最有可能是什么？
溶液X = 中性 ； 溶液Y = 碱性
溶液X = 酸性 ； 溶液Y = 中性
溶液X = 碱性 ； 溶液Y = 酸性
溶液X = 酸性 ； 溶液Y = 碱性
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
上图显示一杯咖啡。
哪项与咖啡的化学性质是相同的？
肥皂
凤梨
咸鱼
沐浴露
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
以下哪种物质的水溶液能使
红色石蕊试纸变成蓝色？
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