Cho m gam hỗn hợp cu và fe có tỉ lệ khối lượng tương ứng là 7:3 tác dụng với hno3 thu được 0.75m gam chất rắn, dung dịch X và 5.6 lít hơn hợp khí no và no2. Biết lượng hno3 phản ứng là 44.1 Gam. Giá trị m là

Which statement describes how phase changes can be diagrammed as a substance is heated? the phase is on the y-axis and the temperature is on the x-axis. the temperature is on the y-axis and the phase is on the x-axis. the time is on the y-axis and the temperature is on the x-axis. the temperature is on the y-axis and the time is on the x-axis.

You have 125g of a certain seasoning and are told that it contains 76.0 g of salt what is the percentage of salt by mass in this seasoning

In a reaction (at equilibrium) that makes more moles of gas than it consumes, what is the effect of increasing the pressure?