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changmn.01
2 năm trước
Trong bình đốt khí người ta dung tia lửa điện để đốt một hỗn hợp gồm 32 cm3 khí hiđro và 30 cm3 khí oxi. a) Sau phản ứng còn thừa khí nào không? Thừa bao nhiêu cm3 ? b) Tính thể tích và khối lượng hơi nước thu được? (Biết các thể tích khí và hơi đo ở đktc).
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