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pebong195
2 năm trước
Có 5 bình thủy tinh A, B, C, D, E mỗi bình chứa 3,36 lít khí oxi ở đktc. Cho vào mỗi bình 7,13g 1 trong 5 chất rắn: S, P, Mg, Na, Al. Nung bình ở nhiệt độ thích hợp trong điều kiện được bịt kín khi phản ứng xảy ra hoàn toàn thì khối lượng chất rawnstrong bình nào bé nhất, lớn nhất, vì sao?
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