fertilisers 0.0 / 5 ? ChemistryfertilisersNational 5SQA Created by: urghexamsCreated on: 18-12-18 19:55 name the three elements important for plant growth? nitrogen, phosphorus, potassium 1 of 14 what is a fertiliser and why is it important? a fertiliser is a soluble substance containing at least phosphorus, potassium and nitrogen. important because it provides plants with these chemicals 2 of 14 NH4N03 and KNO3 are both good fertilisers, what are they? ammonium nitrate and potassium nitrate 3 of 14 why is NH4N03 and KNO3 both good fertilisers? because they provide NPK nutrients 4 of 14 what is the formula for ammonia gas? NH3 5 of 14 describe fountain experiment... water in bottom, long tube going into a bulb shaped beaker containing ammonia gas. water is sucked through the tube and turns purple 6 of 14 what are the main properties of ammonia gas? creates an alkaline solution, soluble and has a pungent smell 7 of 14 what is the haber process? the process in which ammonia is formed through the use of hydrogen and nitrogen, its reversible 8 of 14 why is the haber process important? because it produces ammonia which is very useful in fertiliser production 9 of 14 what catalyses the haber process? iron 10 of 14 what two factors effect the yield of ammonia in the hater process? temperature and pressure, medium temperatures, high pressure 11 of 14 what is produced in the Ostwald process? nitric acid 12 of 14 what are the reactions in the Ostwald process? ammonia and oxygen 13 of 14 what catalyses the Ostwald process platinum 14 of 14
Comments
No comments have yet been made