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认识化合价

Authored by 潘嘉寧 潘嘉寧

Chemistry

3rd Grade

Used 74+ times

认识化合价
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16 questions

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1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

哪个是铜离子(可多选)

Cu+

Cu-

Cu2+

Cu2-

2.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

哪个是铁离子(可多选)

Fe2+

Fe3+

Fe+

Fe-

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

哪项错误?

H+

K+

Na+

F+

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

哪个错误?

Ba2+

Zn2+

Ag2+

Mg2+

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

氯 (Cl) 是第17族的,下列哪个不正确?

Cl-

Cl+

Cl+5

Cl+7

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

NO3中,N的化合价是

-3

+5

+7

+1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

铝离子是

Al+

Al2+

Al3+

Al4+

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