
ĐỀ CƯƠNG ÔN TẬP HỌC KÌ 2 - HOÁ 12
Quiz
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Others
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KG
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Hard
nguyen quynh
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131 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nước cứng là nước có chứa nhiều các ion
Ca2+ Mg2+
Ba2+ Na2+
K+ Fe2+
Fe2+ Fe3+
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất nào sau đây làm mềm nước vĩnh cửu (chứa CaCl2, MgSO4)?
Na2Co3
3.
OPEN ENDED QUESTION
3 mins • 1 pt
Để chuyên chở axit HNO3 đậm đặc, nguội hoặc axit H2SO4 đậm đặc, nguội người ta thường dùng thùng làm
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4.
OPEN ENDED QUESTION
3 mins • 1 pt
Ferrous sulfate is used in the leather industry, paper industry, as a dye fixative in the textile industry, etc. What is the chemical formula of ferrous sulfate?
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5.
OPEN ENDED QUESTION
3 mins • 1 pt
Position, outermost electron configuration, and physical properties of iron
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6.
OPEN ENDED QUESTION
3 mins • 1 pt
Nguyên tắc chung để điều chế kim loại là
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7.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
Trộn bột kim loại X với bột sắt oxit (gọi là hỗn hợp tecmit) để thực hiện phản ứng nhiệt nhôm dùng để hàn đường ray tàu hỏa. Kim loại X là?
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