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Chemistry, 06.09.2021 14:00 tracitalbot

A, B là 2 nguyên tố thuộc nhóm IA và 2 chu kì liên tiếp. Cho 5,65g hỗn hợp A, B vào nước dư. Sau phản ứng hoàn toàn được 3,92 l H2(đktc). Xác định A, B, tính % khối lượng muối trong kim loại hỗn hợp

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A, B là 2 nguyên tố thuộc nhóm IA và 2 chu kì liên tiếp. Cho 5,65g hỗn hợp A, B vào nước dư. Sau phả...
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