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tonysenpai098
2 năm trước
Câu 1. Vì sao nói axit cacbonic là một axit yếu và kém bền? Câu 2. Muối cacbonat gồm có mấy loại? Nêu ví dụ? Câu 3. Muối cacbonat có tính chất hoá học nào? Mỗi tính chất viết một phương trình hóa học minh họa. Câu 4. Xác định vị trí của các nguyên tố có số hiệu nguyên tử là . 20, 17, 13 ở trong bảng tuần hoàn và cho biết cấu tạo nguyên tử, tính kim loại hay phi kim? Bài 1. Viết phương trình hóa học để hoàn thành sơ đồ phản ứng sau: CaO CaCO3 CaO Ca(OH)2 CaCO3 CaSO4 Bài 2. 6,72 l khí CO2 (đktc) tác dụng vừa hết với 600ml dd Ba(OH)2, sản phẩm tạo thành là BaCO3 và nước. a. Viết PTHH. b. Tính nồng độ mol của dd Ba(OH) đã dùng. c. Tính khối lượng kết tủa tạo thành.
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