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化学用语小测验

Authored by 颜颜 颜颜

Chemistry

9th Grade

Used 3+ times

化学用语小测验
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20 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

1.地壳中含量最多的元素是( )

A.氧

B.铝

C.硅

D.铁

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

2.加碘食盐、葡萄糖酸锌口服液中的“碘”、“锌”指的是( )

A.原子

B.分子

C.单质

D.元素

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

3.国际通用的元素符号是用1个或2个拉丁文字母表示的,其中第一个字母大写,第二个字母小写。镍元素的拉丁文名称为Niccolum,则镍的元素符号为( )

A.Ni

B.NI

C.N

D.Na

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

4.下列符号中既能表示一种元素,又能表示一个原子,还能表示一种单质的是( )

A.N

B.O

C.H

D.Fe

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

5.下面元素符号正确的是()

A.金aU

B.锰Mn

C.氦he

D.银AG

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

6.元素符号“N”可以表示()

A.氮气的化学式

B.1个氮原子

C.1个氮元素

D.氮原子质量

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

7.Fe2O3中Fe的化合价是 ( )

A.-3

B.-2

C.+2

D.+3

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