Chemistry-C10-NPK Fertilisers

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  • Created by: tonisha_
  • Created on: 26-03-23 15:21
NPK fertilisers contain compounds of what three elements?
nitrogen
potassium
phosphorous
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These improve agricultural?
productivity
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What two ways can it help?
grow larger
more rapid
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Where are NPK Fertilisers produced?
large industrial facilities
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A variety of different ____ _____ are _____ together to produce the _____ fertiliser required?
different raw materials together to produce the exact fertiliser required
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NPK fertilisers are _______ of different _____?
formulations of different salts
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They all contain the appropriate _____ of element needed by the plant?
percentage
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The main compound of nitrogen is what?
ammonium nitrate
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Where is the ammonia from?
haber process
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Where is the nitric acid from?
the ammonia
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We then react the?
ammonia and nitric acid together to make ammonium nitrate
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The potassium comes from the two salts?
potassium chloride
potassium sulfate
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These compound can be _____ from where?
mined from the ground
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These can be used without any?
further processing
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Phosphate rock must firstly be what?
chemically processed
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If we add nitric acid to phosphate rock we get what acid?
what nitrate?
phosphoric acid
calcium nitrate
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However the phosphoric acid contains what?
phosphorus
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This cant be directly?
added to plants
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Therefore we ______ it with ______?
neutralise it with ammonia
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This makes what?
ammonium phosphate
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Which can?
be used as an NPK fertiliser
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If we add sulfuric acid to phosphate rock we get what phosphate ?
what sulfate?
calcium phosphate
calcium sulfate
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This is a ______ called ______ ________?
mixture called single superphosphate
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This can be used?
as an NPK fertiliser
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DIFFERENCES IN PRODUCTION OF AMMONIUM NITRATE IN INDUSTRY AND LABORATORY
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Ammonium nitrate is what type of reaction?
neutralisation reaction
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In a lab we use what types of solutions of ammonia and nitric acid?
dilute
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This ensures ?
safety
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In industry, the ammonia is a ?
gas
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And the nitric acid is very?
concentrated
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This is ______ since the reaction is _____?
dangerous
exothermic
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In a lab you produce the crystals using what two pieces of equipment?
water bath
bunsen burner
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This requires lots of ?
heat energy
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In industry, the heat is provided from where?
the previous exothermic reaction
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In a lab, how much ammonium nitrate is made at once?
small amounts
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What is this process called?
batch process
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In industry, what process is it?
continuous
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Card 2

Front

These improve agricultural?

Back

productivity

Card 3

Front

What two ways can it help?

Back

Preview of the front of card 3

Card 4

Front

Where are NPK Fertilisers produced?

Back

Preview of the front of card 4

Card 5

Front

A variety of different ____ _____ are _____ together to produce the _____ fertiliser required?

Back

Preview of the front of card 5
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