Cho 40.4 gam hỗn hợp 3 kim loại Fe, Cu, Al vào dung dịch H2SO4 10% người ta thu được 1,8 gam H2 và 12,8gam một chất rắn không tan . Tính% khối lượng mỗi chất rắn hỗn hợp đầu

The best solution for preventing harm to people and pets from severe hurricanes involves determining and warning residents about what

Which of the following is true about a carbonated soft drink? . the carbon dioxide is the solvent, and water is the solute.. the water is the solution, and carbon dioxide is the solvent.. the carbon dioxide is the solution, and the water is the solvent.. the water is the solvent, and the carbon dioxide is the solute.. .

How can parts of a solution be separated by chromatography?