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化学符号

Authored by 1188 KIE

Science

9th Grade

Used 28+ times

化学符号
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10 questions

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1.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

用化学符号表示 “2个氢原子”

2H

2O

2H+

2OH-

2.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

用化学符号表示 “2个氢离子”

2H

2O

2H+

2OH-

3.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

用化学符号表示 “2个氢氧根离子”

2H

2O

2H+

2OH-

4.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

用化学符号表示 “1个氢分子”

H2

2H

H+

OH-

5.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

用化学符号表示 “2个氧分子”

O2

2O2

2O2-

2O

6.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

用化学符号表示 “金属钠”

Na

Ne

N

So

7.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

用化学符号表示 “3个钠离子”

Na

2Na2

3Na+

3Na

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