Bài giảng Đề và đáp án tổng hợp thi HSG tỉnh môn hoá -Ninh Hòa.doc
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1/ Trong bình kín chứa 500 mol hỗn hợp khí gồm N
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Bài 2: (3,5) Hoà tan hoàn toàn 19,46g một hỗn hợp gồm Mg, Al và Zn (trong đó số gam Mg = số gam
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2/ Đốt cháy 10 g C ta thu được một hỗn hợp CO và CO
2
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Bài 4: (3,5)Trộn 50ml hỗn hợp khí A gồm N
2
và NO với 25ml không khí thu được 70ml hỗn hợp B .
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