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nguyenthugiang2861
2 năm trước
Bài 1: Cho các CTHH sau: HNO3, SO3, K2O, BaO, CaO, CuO, ZnSO4, N2O5, O2, Al(OH)3. a/ Hợp chất nào là oxit bazơ? Viết CTHH của bazơ tương ứng. b/ Hợp chất nào là oxit axit? Viết CTHH của axit tương ứng. * Bài 2: Tính số mol và khối lượng của kaliclorat cần dùng để điều chế được: a/ 16 gam oxi. b/ 5,6 lít khí oxi.
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