Chimie
Quiz
•
Chemistry
•
7th Grade
•
Practice Problem
•
Hard
Victoria Ciurca
Used 52+ times
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12 questions
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1.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
Simbolul chimic al fosforului este:
S
F
P
C
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
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
Mr ( Ca3 (PO4)2= ?
210
310
120
167
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Sulful manifestă următoarele valențe:
VI, IV
II, IV, VI
III, VI
I, III
5.
MULTIPLE SELECT QUESTION
1 min • 1 pt
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
Numărul de neutroni în nucleul atomului de Aluminiu este:
13
14
27
3
7.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Sulful manifestă valență superioară în compusul:
SO2
H2S
Na2S
SO3
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