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hoangbighero
2 năm trước
giúp em bài này với ạ Hòa tan m gam Al bằng dd HNO3 dư theo phương trình phản ứng: Al + HNO3 --> AL(NO3)3 + NO + H2O, thu được 6.72 lít khí NO (đktc) và dd chứa x gam muối. a)cân bằng phương trình, viết các quá trình hóa khử, quá trình oxi hóa b) tính giá trị của m và x
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