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Authored by PHU PHAM

Chemistry

11th Grade

Used 3+ times

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5 questions

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1.

MULTIPLE CHOICE QUESTION

5 sec • 2 pts

Các nguyên tử  của nguyên tố  thuc nhóm  IVA cấu hình e lớp ngi cùng là  

ns2np3

ns2np2.

ns2np4

ns1np3

2.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Media Image

Tính oxi hóa của cacbon thể hiện ở phản ứng nào trong các phản ứng sau?

C + O2 → CO2

C + 2CuO → 2Cu + CO2

3C + 4 Al → Al4C3

C + H2O → CO + H2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1234

1

2

3

4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

5678

5

6

7

8

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

abcd

a

b

c

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