Kiem tra Hoa 8 15

<span class='text_page_counter'>(1)</span>Hä vµ tªn: Líp: 8A. Điểm. bµi kiÓm tra 15 phót (§Ò sè 1). C©u 1: TÝnh ho¸ trÞ cña c¸c nguyªn tè: a) §ång trong c¸c hîp chÊt CuCl vµ CuCl2 b) Phèt pho trong c¸c hîp chÊt P2O3 vµ P2O5 c) Lu huúnh trong c¸c hîp chÊt SO2 vµ SO3 C©u 2: LËp c«ng thøc ho¸ häc cña c¸c hîp chÊt chøa oxi cña c¸c nguyªn tè sau ®©y: a) Fe (III) b) Na (I) c) N (III). Bµi lµm ..................................................................................................................................................................................................................................................................... ..................................................................................................................................................................................................................................................................... ..................................................................................................................................................................................................................................................................... ..................................................................................................................................................................................................................................................................... ..................................................................................................................................................................................................................................................................... ..................................................................................................................................................................................................................................................................... ..................................................................................................................................................................................................................................................................... ...................................................................................................................................................................................................................................................................... Hä vµ tªn: Líp: 8A. bµi kiÓm tra 15 phót (§Ò sè 2). Điểm. C©u 1: TÝnh ho¸ trÞ cña c¸c nguyªn tè: a) S¾t trong c¸c hîp chÊt FeO vµ Fe2O3 b) Clo trong c¸c hîp chÊt HCl vµ Cl2O5 c) Lu huúnh trong c¸c hîp chÊt H2S vµ SO3 C©u 2: LËp c«ng thøc ho¸ häc cña c¸c hîp chÊt chøa oxi cña c¸c nguyªn tè sau ®©y: a) Al (III) b) C (IV) c) N (V). Bµi lµm ..................................................................................................................................................................................................................................................................... ..................................................................................................................................................................................................................................................................... ..................................................................................................................................................................................................................................................................... ..................................................................................................................................................................................................................................................................... ..................................................................................................................................................................................................................................................................... ..................................................................................................................................................................................................................................................................... ..................................................................................................................................................................................................................................................................... ......................................................................................................................................................................................................................................................................

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