KHTN 7 - ÔN TẬP CUỐI HỌC KÌ 1
7th Grade
•58 Qs
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KHTN 7 - ÔN TẬP CUỐI HỌC KÌ 1
Quiz
•
Science
•
7th Grade
•
Practice Problem
•
Easy
Nguyễn Thuận
Used 2+ times
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58 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phân tử gồm nhiều nguyên tử liên kết tạo thành.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phân tử khối được tính bằng tổng nguyên tử khối các nguyên tử trong phân tử
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Đơn chất được cấu tạo từ một nguyên tố
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
H2O là đơn chất
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hợp chất được cấu tạo từ 2 nguyên tố hóa học
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
C2H5OH là hợp chất
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phân tử khối của CO2 là 44 amu (C=12; O=16)
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