hòa tan hoàn toàn hỗn hợp gồm Fe, FeO, Fe2O3, Fe(OH)2 và Fe(OH)3 trong dung dịch chứa 0,26 mol H2SO4 và 0,22 mol HNO3, thu được dung dịch X (chỉ gồm muối) và 0,05 mol khí NO (sản phẩm khử duy nhất). Cho HCl dư vào dung dịch X lại thấy có 0,01 mol NO thoát ra. Tính khối lượng muối khan X.​

Plz mark brainliest 30 points 1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s. 2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?

Nuclear decay is the spontaneous decay of one element into a. an x-ray b. a ray of light c. another element