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8 а КЛ отработка дом валент+типы

Authored by Анна Атаманчук

Chemistry

8th Grade

Used 7+ times

8 а КЛ  отработка дом валент+типы
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Марганец проявляет  валентность IV  в оксиде

  • MnO

  • MnO2

  • MnO3

  • Mn2O7

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Марганец проявляет  валентность VII  в оксиде

Mn2O7

MnO2

MnO

Mn2O3

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Хлор проявляет  валентность I  в оксиде

Cl2O3

Cl2O

Cl2O7

Cl2O5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Укажите пару оксидов, у которых валентность марганца ниже валентности хрома.

  • CrO и Mn2O3

  • CrO2 и MnO2

  • CrO и Mn2O7

  • CrO3 и Mn2O3

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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7.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

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