8-А (тест)
Quiz
•
Chemistry
•
1st - 5th Grade
•
Practice Problem
•
Medium
Oleksandra German
Used 3+ times
FREE Resource
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9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Обчисліть відносну молекулярну масу СО
28
26
32
24
2.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
Назвіть відносну атомну масу Аргону
39
40
38
41
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Обчисліть відносну молекулярну масу сполуки CuO
78
80
79
81
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Обчисліть відносну молекулярну масу сполуки NaCl
57
57.5
58.5
58
5.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
Назвіть відносну атомну масу Хлору
35,5
35
34,5
34
6.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Обчисліть відносну молекулярну масу алюміній оксиду
105
72
102
99
7.
FILL IN THE BLANK QUESTION
5 mins • 10 pts
Маса розчину 250г, масова частка цукру 20%. Яка маса цукру?
8.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Маса розчину 50 г, маса солі 10г. Яка масова частка солі в розчині?
16%
20%
15%
21%
9.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Маса солі 8г, маса води 142г. Яка масова частка солі?
4,5%
3%
4%
5%
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