[Học Để Thi] New comment on Bảo toàn mol electron.

Vua Hài Kịch has left a new comment on your post "Bảo toàn mol electron":

cho 7.22 gam hỗn hợp X (Fe và kim loại ,M có hiện hóa trị không thay đổi). Chia hỗn hợp làm thành 2 phần bằng nhau:
- phần 1 : cho tác dụng hết với HCl thu được 2.128 lít khí H2 (đktc)
- phần 2 : hòa tan trong HNO3 cho ra 1.792 lít NO duy nhất (đktc)
xác định kim loại M . Tính phần trăm khối lượng kim loại trong X

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Posted by Vua Hài Kịch to Học Để Thi at December 15, 2018 at 9:38 AM

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