
HKI-chủ đề 2a
Flashcard
•
Chemistry
•
11th Grade
•
Practice Problem
•
Hard
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16 questions
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1.
FLASHCARD QUESTION
Front
Thí nghiệm Cu với HNO3 đặc: Hiện tượng quan sát?
Back
Khí nâu đỏ thoát ra, dung dịch chuyển sang xanh.
2.
FLASHCARD QUESTION
Front
Nitric acid is produced globally in millions of tons annually, with 80% used for ammonium nitrate fertilizer (NH3 + HNO3 → NH4NO3). What role does nitric acid play in this reaction?
Back
acid.
3.
FLASHCARD QUESTION
Front
Phù dưỡng là biểu hiện ô nhiễm ao, hồ do dư thừa chất dinh dưỡng. Ion nào vượt quá mức cho phép?
Back
Nitrate, phosphate.
4.
FLASHCARD QUESTION
Front
Đơn chất sulfur trong tự nhiên phân bố ở vùng núi lửa và suối nước nóng, khi núi lửa hoạt động, sulfur được giải phóng ra khởi lõi Trái Đất chủ yếu ở dạng:
Back
SO2 và H2S.
5.
FLASHCARD QUESTION
Front
Thành phần chính của quặng pyrite là
Back
FeS2.
6.
FLASHCARD QUESTION
Front
Hơi mercury (Hg) rất độc, chất bột rắc lên mercury là gì?
Back
sulfur.
7.
FLASHCARD QUESTION
Front
Phát biểu không đúng về sulfur:
Back
Sulfur phản ứng trực tiếp với hydrogen ở điều kiện thường.
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