
ÔN TẬP CHƯƠNG 2
Quiz
•
Chemistry
•
3rd Grade
•
Easy
Kim Tím
Used 1+ times
FREE Resource
44 questions
Show all answers
1.
OPEN ENDED QUESTION
3 mins • 1 pt
Cấu hình electron nguyên tử iron (Fe): [Ar]3d64s2. Vị trí iron (Fe) trong bảng tuần hoàn là
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
Sulfur (S) là nguyên tố thuộc nhóm VIA, chu kì 3 của bảng tuần hoàn. Trong các phát biểu sau:
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3.
OPEN ENDED QUESTION
3 mins • 1 pt
Số phát biểu đúng là A. 2. B. 3. C. 4. D. 5.
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4.
OPEN ENDED QUESTION
3 mins • 1 pt
Số phát biểu đúng là A. 2. B. 3. C. 4. D. 1.
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5.
OPEN ENDED QUESTION
3 mins • 1 pt
Công thức oxide ứng với hóa trị cao nhất, hydroxide tương ứng của R và tính acid - base của chúng là A. R2O3, R(OH)3 (đều lưỡng tính). B. RO3 (acidic oxide), H2RO4 (acid). C. RO2 (acidic oxide), H2RO3 (acid). D. RO (basic oxide), R(OH)2 (base).
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6.
OPEN ENDED QUESTION
3 mins • 1 pt
Số phát biểu đúng là A. 4 B. 5 C. 6 D. 7
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7.
OPEN ENDED QUESTION
3 mins • 1 pt
Nguyên tử khối của X là A. 12 B. 14 C. 28 D. 32
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