
KHỞI ĐỘNG A3k19
Authored by Ngo Thi Thuy
Chemistry
11th Grade
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sodium (Na) cháy trong khí Cl2 sinh ra sản phẩm là
NaCl2
NaCl
Na2Cl
NaCl3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số oxi hóa của Mg trong hợp chất MgCl2 là
+2
+1
-1
-2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch HCl không tác dụng với kim loại nào sau đây?
Fe
Al
Cu
Mg
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sản phẩm muối thu được khi thực hiện phản ứng của Aluminium tác dụng với HCl là
Al2O3
AlCl2
AlCl3
AlCl
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Khối lượng của Cu có trong 0,15 mol CuO là
9,6 gam
6,4 gam
12 gam
2,4 gam
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Trong oxide Fe2O3 có chứa 0, 18 mol nguyên tử Oxygen. Khối lượng của Fe2O3 là
6,72
9,6
11,2
2,88
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Đốt cháy hết 9,2 gam hỗn hợp X gồm Fe và Mg trong V lít khí Cl2 (đkc), thu được 30,5 gam hỗn hợp muối. Giá trị V là
6,72
7,437
4,48
3,7185
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