Fertilisers Flashcards Preview

Chemistry- Unit 3 Nat5 > Fertilisers > Flashcards

Flashcards in Fertilisers Deck (9)
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1
Q

what is a fertiliser

A
  • restores essential nutrients to the soil

- these nutrients are needed for healthy plant growth/ higher yield

2
Q

why are they important

A

the huge growth in population so more food is needed fast

3
Q

which elements are needed by plants

A
Carbon
Hydrogen
Oxygen
Nitrogen 
Potassium
Phosphorous
4
Q

what are some natural fertilisers

A

manure
ash compost
bone meal

5
Q

what are some synthetic fertilisers

A

ammonium nitrate
potassium sulfate
ammonium phosphate

6
Q

what is the formula of ammonia

A

NH3

7
Q

what bonding does it have

A

covalent bonding

8
Q

what is the state at room temperature

A

gas

9
Q

what is the shape

A

trigonal pyramidal