AI TRẢ LỜI MIK ĐỀU VOTE 5 SAO VÀ CẢM ƠN Nung hoàn toàn 50g hỗn hợp (A) gồm KCl03, KCl với 0,5g Mn02 sau phản ứng kết thúc thu được 40,9g hỗn hợp rắn (X) a. Lập PTHH , rắn (X) chứa chất gì ? b. Tính % khối lượng mỗi chất trong (A)

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