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化合价化学式书写

Authored by Tong Sun

Science

6th Grade

Used 4+ times

化合价化学式书写
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8 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

氧元素的常见化合价是多少?

0

-2

+2

+1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

氢元素的常见化合价是多少?

0

-2

+2

+1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

镁元素的常见化合价是多少?

0

-2

+2

+1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

写出氧化铜的化学式

Cu

CuO

Cu2O

CuO2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

写出氯化钠的化学式的化学式

Na2Cl2

NaCl

Na+Cl-

nacl

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

写出氧化铁的化学式

Fe

FeO

Fe2O3

Fe3O4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

写出氢氧化钠的化学式

NaOH

NaO

Na2O3

Na2OH

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