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(FINISHED)C10: Using Resources > The Harder questions > Flashcards

The Harder questions Flashcards

1
Q

What materials are obtained by mining?

A

Potassium chloride, potassium sulfate and phosphate rock

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2
Q

How is phosphate rock treated?

A

Nitric acid or sulfuric acid and phosphoric acid to produce soluble salts that can be used as fertilisers

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3
Q

Phosphate rock + nitric acid

A

Calcium nitrate + phosphoric acid
Phosphoric acid contains phosphorous and cannot be directly used on plants so you neutralise it with ammonia
This produces ammonium phosphate

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4
Q

Phosphate rock + sulfuric acid

A

Calcium phosphate and calcium sulfate (single superphosphate)

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5
Q

Phosphate rock + Phosphoric acid

A

Triple superphosphate

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6
Q

What is the equation for the haber process?

A

3H2 + N2 ——-> 2NH3

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(FINISHED)C10: Using Resources (3 decks)

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