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luong bt

Authored by Anh Ngọc

Chemistry

1st Grade

11 Questions

luong bt
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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

nha co may nguoi

1

2

3

4

2.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Trong các dãy chất sau dãy nào toàn là đơn chất?

H2, O2, Na, Al

CaO, CO2, ZnO, O2

HNO3, H2CO3, H2SO4.

Na2SO4, K2SO4, CaCO3.

3.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

The Canadians eat healthy food.

They eat_____

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Կովալենտ ոչ բևեռային կապ առաջանում է․

H2

HCl

CO2

H2O

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which part of the plant holds it in one place in the ground?

Flowers

Roots

Leaves

Branch

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Phép tính sau có kết quả là:

92,018

93,018

82,018

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 NAN_A  =

 6.02 10236.02\ \cdot10^{-23}  

6.02

 6.0210246.02\cdot10^{-24}  

22.4

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