hoacuaat
Quiz
•
Education
•
10th Grade
•
Practice Problem
•
Easy
Thư Anh
Used 2+ times
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39 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong phân tử oxygen, số oxi hóa của nguyên tố oxygen
0
-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phản ứng hóa học xây ra đồng thời quá trình nhường và nhận electron được gọi là
oxi hóa khử
phân huỷ
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong phản ứng oxi hóa - khử, chất bị khử là chất
nhường e
nhận e
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong phản ứng oxi hóa - khử, chất nhường electron được gọi là
chất oxi hoá
chất khử
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong hop chat So3, so oxi hoa ca sulfur là
+3
+6
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
phản ứng nào sau đây là phản ứng thu nhiệt?
nhiệt phân muối KNO3
Tôi vôi
Đốt cháy cồn
oxh glucose trong cơ thể
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nhiệt tạo thành chuẩn đổi với chất khí được xác định trong điều kiện áp suất là
1 ba
1 atm
1 bar
760mmHg
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