KHTN lớp 8
Authored by ThuyAi lynguyen
Chemistry
8th Grade
Used 2+ times
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47 questions
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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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