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yennhi0408
2 năm trước
Hiđro peoxit (H2O2) là hợp chất : A. chỉ thể hiện tính oxi hoá. B. vừa thể hiện tính oxi hoá, vừa thể hiện tính khử. C. rất bền. D. chỉ thể hiện tính khử.
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