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Nat 5 chemistry > Chemistry in Society > Flashcards

Chemistry in Society Flashcards

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1
Q

What structure is metallic bonding?

A

Lattice structure

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2
Q

What is oxidation?

A

The loss of electrons

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3
Q

What is reduction?

A

The gain of electrons

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4
Q

What is redox?

A

A combination of oxidation and reduction

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5
Q

What are the methods for extracting metals?

A

Heat alone
Heating with carbon or carbon monoxide
Electrolysis

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6
Q

What is electrolysis?

A

The decomposition of an ionic compound into its elements using electricity

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7
Q

What is an electrolyte?

A

An ionic solution that conducts electricity

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8
Q

Where do reduction reactions happen?

A

At the cathode

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9
Q

Where do oxidation reactions happen?

A

At the anode

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10
Q

What is a polymer?

A

Polymers are long chain molecules formed by joining together a large number of small molecules called monomers.

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11
Q

What is addition polymerisation?

A

The name given to a chemical reaction in which unsaturated monomers are joined, forming a polymer.

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12
Q

What is a repeating unit?

A

A repeating unit is the shortest section of a polymer chain which, if repeated would yield the complete polymer chain.

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13
Q

What are the elements required for plant growth?

A

Nitrogen, Phosphorus and Potassium

NPK

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14
Q

What is metallic bonding?

A

Metallic bonding is the electrostatic force of attraction between positively charged ions and delocalised electrons.

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15
Q

In the haber process what is used to produce ammonia?

A

Nitrogen and hydrogen

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16
Q

What are fertilisers?

A

Fertilisers are substances which restore elements essential for healthy plant growth.

17
Q

In the otswald process what is used top make nitric acid?

A

Ammonia and air

18
Q

What does the otswald process produce?

A

Nitric acid

19
Q

What catalyst is used in the otswald process?

A

A platinum catalyst

20
Q

What is produced in the haber process?

A

Ammonia

21
Q

What catalyst is used in the haber process?

A

An iron catalyst

Nat 5 chemistry (4 decks)

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