KHTN lớp 8

Quiz

•

Chemistry

•

8th Grade

•

Hard

ThuyAi lynguyen

Used 2+ times

FREE Resource

47 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Xem phương trình sau:

Al + 6HCl → 2AlCl₃ + 3H₂

Đúng

Sai

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Xem phương trình sau:

4P + 5O₂ → 2P₂O₅

Đúng

Sai

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Xem phương trình sau:

2Fe(OH)₃ ------→ Fe₂O₃ + H₂

Đúng

Sai

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Xem phương trình sau:

Al₂(SO₄)₃ + BaCl₂ → 3BaSO₄ + AlCl₃

Đúng

Sai

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Khối lượng nguyên tử được tính bằng đơn vị gam (g)

Đúng

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6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Xem phương trình sau:

2H₂O -----> 2H₂↑ + O₂↑ ( điện phân)

Đúng

Sai

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mol là đơn vị đo lượng chất

Đúng

Sai

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