Chimie

Chimie

7th Grade

12 Qs

quiz-placeholder

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Chimie

Chimie

Assessment

Quiz

Chemistry

7th Grade

Practice Problem

Hard

Created by

Victoria Ciurca

Used 52+ times

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12 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

20 sec • 1 pt

Media Image

Simbolul chimic al fosforului este:

S

F

P

C

2.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Media Image

Numărul de ordine a clorului și masa lui atomică relativă este:

17 și 35

18 și 35,5

17 și 35,5

17 și 36

3.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

Media Image

Mr ( Ca3 (PO4)2= ?

210

310

120

167

4.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Media Image

Sulful manifestă următoarele valențe:

VI, IV

II, IV, VI

III, VI

I, III

5.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Media Image

Repartizarea electronilor pe nivele energetice pentru elementul Ca este:

2e, 8e, 10e

2e, 8e, 9e, 1e

2e, 8e, 7e, 3e

2e, 8e, 8e, 2e

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Media Image

Numărul de neutroni în nucleul atomului de Aluminiu este:

13

14

27

3

7.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

Media Image

Sulful manifestă valență superioară în compusul:

SO2

H2S

Na2S

SO3

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