nuclear chemistry and fertilisers Flashcards
what is radioactive decay
radio active nuclei can become more stable by emitting radiation
alpha (speed, charge, mass, symbol)
slow, 2+, 4, 4/2 He 2+
beta (speed, charge, mass, symbol)
fast, 1-, almost 0, 0/-1e-
gamma (speed, charge, mass, symbol)
speed of light, 0, 0
what is a half life
the time for half of the radioactive nuclei of a particular isotope to decay
name the three nutrients
nitrogen phosphorus potassium
what are used to produce soluble salts
ammonia and nitric acid
why is the haber process not used economically at low temperatures
it is too slow
what happens if the haber process when the temperature is increased
the backward reaction becomes more dominant
what is the catalyst for the haber process
iron
ammonia is the starting material for comical process
nitric acid
describe ammonia
- colourless pungent (smelly) gas
- forms alkaline solutions
- reacts with acids~soluble salts
- very soluble in water
