
三年级科学第8课酸与碱
Quiz
•
Science
•
3rd Grade
•
Practice Problem
•
Medium
ooi fern
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 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
30 sec • 1 pt
上图显示轩豪将柠檬汁挤入矿泉水里。
杯里的矿泉水的化学性质会产生什么变化?
由酸性变成中性
由碱性变成酸性
由中性变成酸性
由中性变成碱性
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪种物质的化学性质与上述物质相同?
白粥
酸奶
盐水
洗发水
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
碱性物质的味道一般是怎样?
带有酸味
带有苦味
带有咸味
带有甜味
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪些物质会使蓝色石蕊试纸变成红色?
i 牙膏
ii 橙汁
iii 酸柑汁
iv 蒸馏水
i 和 ii
i 和 iv
ii 和 iii
iii 和 iv
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
酸性物质的味道一般是怎样的?
带有酸味
带有苦味
带有咸味
带有甜味
7.
MULTIPLE CHOICE QUESTION
30 sec • 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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