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五下U.2是非題

Authored by Kenny Hsieh

Science

5th Grade

Used 11+ times

五下U.2是非題
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

可以利用酒精燈加熱食鹽水溶液來蒸發水分,取回溶解在水中的食鹽。

正確

錯誤

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

當紫色高麗菜汁滴入石灰水時,紫色高麗菜汁會維持紫色系。

正確

錯誤

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

糖水會使藍色與紅色石蕊試紙都不變色,所以糖水是中性水溶液。

正確

錯誤

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

手不小心沾到強鹼水溶液時,要立刻用酸性水溶液沖洗。

正確

錯誤

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

胃酸過多時,可以吃胃乳片減緩症狀,這是酸和鹼互相作用的例子。

正確

錯誤

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

肥皂、食鹽和小蘇打粉溶解於水中所形成的水溶液,都很容易導電。

正確

錯誤

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

大雄家的熱水壼產生水垢,他可以加入小蘇打粉將水垢溶解清除。

正確

錯誤

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