Test HH cơ bản 01
Quiz
•
Chemistry
•
10th Grade
•
Practice Problem
•
Medium
Giang Nguyễn
Used 4+ times
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14 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Câu 1: Nguyên tố potassium có kí hiệu là
P
Na.
F.
K.
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Câu 2: Nguyên tử khối của sodium (Na) là bao nhiêu gam/mol?
23
24
27
64
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Câu 3: Hoá trị của chlorine (Cl) trong hầu hết các hợp chất là
1
3
5
7
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Câu 4: Nhóm halogen là nhóm VIIA có các nguyên tố nào sau đây
N
F
Cl
Br
I
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Câu 5: Số mol O (oxygen) có trong 2 mol Fe2(SO4)3 là
2
4
12
24
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Câu 6: Sau khi cân bằng phương trình phản ứng sau (với hệ số là các số nguyên, tỉ lệ tối giản) thì hệ số của HCl là bao nhiêu?
Al + HCl -> AlCl3 + H2
2
3
6
9
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Câu 7: Số mol của 16 gam Sulfur là
0,4 mol
0,5 mol
0,2 mol
0,3 mol
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