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金屬 1

Authored by Wing Chan

Science

9th Grade

Used 3+ times

金屬 1
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16 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

根據導電能力、展性與價格綜合來看,哪種金屬適合做電線?

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

公元前3000年時,以下哪種元素被加入銅中製成青銅?

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

金屬氧化物+碳-->金屬+二氧化碳

這個反應是什麼?

碳還原法

淘金

直接加熱

電解

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列哪些不是用化學方法提取的金屬?

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

在自然界中以化合物存在的金屬?

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

以質量計算,金屬在地殼中大約佔24%,鉀佔多少%?

2.1%

2.8%

3.6%

以上非是

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

以元素形式存在於自然界的金屬有?

(1) 金

(2) 鐵

(3) 銅

(4) 鉑

2,3

1,3

1,4

2,4

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