FERRUM

FERRUM

9th Grade

6 Qs

quiz-placeholder

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FERRUM

FERRUM

Assessment

Quiz

Chemistry

9th Grade

Practice Problem

Medium

Created by

Marina Komarova

Used 5+ times

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6 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Электронная формула атома железа

3d6 4s1

3d5 4s2

3d6 4s2

3d8 4s3

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Степени окисления железа в соединениях

+2

+3

+1

+2 +3

3.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Железо

серебристо - белый металл

имеет магнитные свойства

не растворяется в кислотах

не окисляется

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

сумма коэффициентов уравнения Fe + O2 -> Fe3O4 равна

4

5

6

7

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Сумма коэффициентов уравнения Fe + HNO3(оч.разб.) -> Fe(NO3)2 + N2 + H2O равна

28

29

30

31

6.

FILL IN THE BLANK QUESTION

1 min • 1 pt

положительно заряженный ион называется

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