Chemistry, 22.09.2021 14:00 clairesmom
Không tính toán cụ thể mà lý luận để :
a) Xác định chất giàu oxi nhất: Al2O3, N2O3, P2O3, Fe, O3, Cl2O3.
b) Sắp xếp các chất sau theo thứ tự hàm lượng sắt giảm dần: FeS, FeS2, FeO, Fe3O4, Fe2O3, FeSO3, FeSO4, Fe2(SO4)3.
c) Tìm những chất có hàm lượng đồng bằng nhau trong 4 chất : CuO, Cu2O, CuS, Cu2S.
Answers: 2
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Không tính toán cụ thể mà lý luận để :
a) Xác định chất giàu oxi nhất: Al2O3, N2O3, P2O3, Fe, O3,...
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