Chemistry Flashcards

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1
Q

Ceramic

A

A hard durable non metallic material

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2
Q

How are pottery hardened

A

They are heated in a kiln to a temperature around 100c

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3
Q

Exothermic reaction

A

A chemical reaction that releases energy by light or heat

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4
Q

Endothermic reaction

A

A chemical reaction that absorbs heat around it making the surroundings colder

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5
Q

Polymer

A

A substance that has molecules made of long chains

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6
Q

I how iron is made

A

Iron oxide+carbon—>iron+carbon dioxide( monoxide)

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7
Q

The most reactive metal

A

Potassium

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8
Q

The least reactive metal

A

Platinum

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9
Q

What metal is used for coke cans

A

Aluminium

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10
Q

What is 90% of a birds diet made of?

A

Plastic

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11
Q

What are people making instead of plastic?

A

Seaweed plastic

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12
Q

What metal was discovered first

Calcium, sliver, magnesium, zinc or sodium?

A

Silver

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13
Q

What type of metal did Napoleon use as cutlery

Iron, potassium, aluminium or gold

A

Aluminium

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14
Q

What is used to make tin

A

Tin is heated with carbon

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15
Q

What is used to make magnesium

A

Electrolysis

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