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Hóa 9 hihi

Authored by Thư Thanh

Chemistry

9th Grade

Hóa 9 hihi
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10 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Chất nào làm quỳ tím hóa đỏ?

Na2SO4

HCl

Ba(OH)2

K2O

2.

FILL IN THE BLANK QUESTION

45 sec • 1 pt

Oxit axit tác dụng với nước tạo thành.......

3.

MULTIPLE SELECT QUESTION

20 sec • 1 pt

Nhận biết axit sunfuric và muối sunfat bằng chất nào?

Ba(NO3)2

BaCl2

Fe

CaCl2

4.

FILL IN THE BLANK QUESTION

5 mins • 1 pt

Hòa tan 12g Mg=V ml dung dịch HCl 2M. Tính thể tích của HCl.

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Phân biệt H2SO4, Na2SO4

Fe, Na, Ca

Fe, Mg, Cu

Mg, Al, Fe, Zn

CuO, NaO, Mg

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Phân biệt HCl, KOH

quỳ tím

Fe

HCl

NaOH

7.

FILL IN THE BLANK QUESTION

2 mins • 1 pt

BaSO4 kết tủa màu gì

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