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2021-2022中和作用ETV

Authored by Ms. Chan陳文俐

Chemistry

7th Grade

Used 1+ times

2021-2022中和作用ETV
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17 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

以下哪項不是酸的特性?

令藍色石蕊試紙變成紅色。

有酸味

有爆炸性

能導電

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

以下哪項不是鹼的特性?

有滑溜感覺

有苦澀味

與金屬反應

令紅色石蕊試紙變成藍色

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

當氫氯酸慢慢加入氫氧化鈉及石蕊試洶的混合物時,混合物的pH有何變化?

pH上升

pH下降

pH不變

pH=7

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

當酸和鹼混合時發生的化學反應名稱是什麼?

抵銷作用

取代反應

光合作用

中和作用

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

稀氫氯酸和氫氧化鈉進行中和作用後得出的鹽是什麼?

碳酸鈣

氯化鈣

氯化鈉

碳酸鈉

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

最適合用來種植蔬菜的pH值是多少?

5

6

7

8

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

如果泥土過酸,農夫會加入甚麼都一和?

石灰水

熟石灰

生石灰

石灰

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