U3-3 - Fertilisers

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Total cards: 15•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (15)

Front (Question)

3 elements essential to plants

Back (Answer)

P, N, K (phosphorus, nitrogen potassium)

Front (Question)

Which two properties must a fertiliser have?

Back (Answer)

• Soluble in water • Contains one or more of P, N, K

Front (Question)

What type of reactions make synthetic fertilisers?

Back (Answer)

Neutralisation reactions

Front (Question)

What type of compounds are synthetic fertilisers?

Back (Answer)

Salts

Front (Question)

A salt solution was made. How can a solid salt sample be produced?

Back (Answer)

Evaporation (Boil away the solvent)

Front (Question)

Formula for ammonia

Back (Answer)

NH3

Front (Question)

Describe the properties of ammonia (smell, hazards, solubility/pH)

Back (Answer)

Sharp unpleasant smell Toxic Dissolves in water to form alkaline solutions

Front (Question)

This process is used to make ammonia

Back (Answer)

Haber process

Front (Question)

This process is used to make nitric acid

Back (Answer)

Ostwald process

#10

Front (Question)

Name the chemical made in the Haber process

Back (Answer)

Ammonia (NH3)

#11

Front (Question)

Name the chemical made in the Ostwald process

Back (Answer)

Nitric acid (HNO3)

#12

Front (Question)

Catalyst used in the Haber process

Back (Answer)

Iron

#13

Front (Question)

Catalyst used in the Ostwald process

Back (Answer)

Platinum

#14

Front (Question)

Equation for the fomation of ammonia (from nitrogen and hydrogen)

Back (Answer)

N2 + 3H2 ⇌ 2NH3

#15

Front (Question)

What does ⇌ mean in equations?

Back (Answer)

Reaction is reversible (goes both ways)