
Dạy Trung tâm
Quiz
•
Science
•
9th Grade
•
Easy
Điền Châu Hải Phước
Used 1+ times
FREE Resource
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hòa X vào nước tạo dd base, X là?
Calcium oxide (CaO)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy kim loại được sắp xếp theo chiều tăng dần mức độ hoạt động là
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho 0,1 mol Na2O vào nước thu được 100 gam dd, vậy dd đó có C%?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Khi cho lá đồng vào dung dịch H2SO4 loãng sẽ có hiện tượng
Không phản ứng.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch FeCl3 có màu?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nhận biết 3 lọ khí: Hydrogen, Carbon dioxide, Oxygen bằng phương pháp hóa học
Sử dụng que đóm, nước vôi trong.
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