7.5 Combustion Reactions

Question 1

Combustion

Answer 1

chemical reaction in that a substance reacts with oxygen and heat is released

Question 2

fuel

Answer 2

a substance that is burned in order to release energy, usually in the form of heat

Question 3

Fossil fuels

Answer 3

substance, such as coal, oil and natural gas, that has formed from the remains of ancient organisms. Coal, oil and natural gas are often used as fuels; that is, they are burned in order to produce heat.

Question 4

hydrocarbons

Answer 4

compounds containing only hydrogen and carbon atoms

Question 5

natural gas

Answer 5

gas formed from the remains of plants and animals that died millions of years ago; a fossil fuel

Question 6

octane

Answer 6

the major component of petrol

Question 7

crude oil

Answer 7

liquid formed from the remains of marine plants and animals that died million of years ago—a fossil fuel. Many other fuel products are obtained from crude oil.

Question 8

kerosene

Answer 8

the fuel used in jet aircraft

Question 9

respiration

Answer 9

the process by which your body gains energy by breaking down glucose, using oxygen and creating carbon dioxide and water; a slow combustion reaction

Question 10

oxidation

Answer 10

chemical reaction involving the loss of electrons by a substance