G8 Week 23 Combustion & Density

Which one of these is not in the fire triangle?

• Fuel
• Heat
• Oxygen
• Carbon dioxide

Another term for "burning" is:

• Fire triangle
• Magnesium oxide
• Combustion
• Bustion

The ignition temperature is the temperature below which a substance does not burn, even in the presence of supporters of combustion.

• True
• False

Which type of fire extinguisher should be used on a fire involving flammable liquids such as grease or oil?

• Water
• Carbon Dioxide 
• Dry Chemical
• Foam

Which one of the following is not a fossil fuel?

• Wood
• Coal
• Petroleum
• Natural Gas

Which type of coal provides the most heat energy per gram of fuel burned?

• lignite
• bituminous
• anthracite

What is the typical efficiency of a coal burning power plant?

• less than 25%
• 25-30%
• 30-50%
• 100%

Which of the following fuel has highest energy value (calories)?

• Wood
• coal
• Hydrogen
• petrol

A chemical reaction in which a compound or element burns by reacting with oxygen is called a(n):

• combination reaction
• decomposition reaction
• combustion reaction
• carbonate decomposition reaction

A compound that contains only carbon and hydrogen and that produces carbon dioxide and water when burned is called a(n)

• binary compound
• carbonate
• ionic compound
• hydrocarbon

Tags

NGSS.MS-PS1-1