Chemistry

Question 1

Ceramic

Answer 1

A hard durable non metallic material

Question 2

How are pottery hardened

Answer 2

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

Question 3

Exothermic reaction

Answer 3

A chemical reaction that releases energy by light or heat

Question 4

Endothermic reaction

Answer 4

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

Question 5

Polymer

Answer 5

A substance that has molecules made of long chains

Question 6

I how iron is made

Answer 6

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

Question 7

The most reactive metal

Answer 7

Potassium

Question 8

The least reactive metal

Answer 8

Platinum

Question 9

What metal is used for coke cans

Answer 9

Aluminium

Question 10

What is 90% of a birds diet made of?

Answer 10

Plastic

Question 11

What are people making instead of plastic?

Answer 11

Seaweed plastic

Question 12

What metal was discovered first

Calcium, sliver, magnesium, zinc or sodium?

Answer 12

Silver

Question 13

What type of metal did Napoleon use as cutlery

Iron, potassium, aluminium or gold

Answer 13

Aluminium

Question 14

What is used to make tin

Answer 14

Tin is heated with carbon

Question 15

What is used to make magnesium

Answer 15

Electrolysis