Burning Fuels and Air Pollution

Question 1

Incomplete combustion

Answer 1

When a substance reacts only partially with oxygen, such as when carbon burns in the air producing carbon dioxide, carbon monoxide and soot (unburnt carbon).

Question 2

Complete combustion

Answer 2

When a substance reacts fully with oxygen

Question 3

Reactant

Answer 3

Substances that react together

Question 4

Product

Answer 4

Substances that are formed

Question 5

Fossil fuels

Answer 5

Formed from living organisms that lived a long time ago

Question 6

Hydrocarbon

Answer 6

Molecules that contain carbon and hydrogen

Question 7

Carbon monoxide

Answer 7

Poisonous and can kill

Question 8

Carbon dioxide

Answer 8

Linked to global warming and climate change.

Question 9

Sulfur dioxide + nitrogen oxide

Answer 9

Acidic gases that can cause acid rain.

Question 10

Soot particles

Answer 10

An damage lungs and trigger asthma

Question 11

Inpurities

Answer 11

Unwanted substance found in useful substances.

E.g. a common impurity is sulfur and it is oxidized to sulfur dioxide gas.

Question 12

Nitrogen oxide

Answer 12

Caused when nitrogen and oxygen react with high temperatures.

Question 13

Nitrogen oxide

Answer 13

Caused when nitrogen and oxygen react with high temperatures

Question 14

Catalytic converter

Answer 14

Causes carbon monoxide gases to react with more oxygen to form carbon dioxide.