What is produced during the complete combustion of propane?
Water and carbon
Carbon monoxide and carbon dioxide
Carbon dioxide and water
Which is the correct definition of the term 'hydrocarbon'?
A molecule containing carbon and hydrogen atoms only
A molecule containing carbon and hydrogen molecules only
A molecule containing atoms, including carbon and hydrogen
What name is given to a small metal can used to hold water that is heated by a chemical reaction?
Beaker
Burette
Calorimeter
Which of the following must be kept the same in order to ensure a fair test when investigating the energy given off by different fuels when they burn?
Volume of water in the copper beaker
Person reading the thermometer
Type of fuel burned
What piece of apparatus is used to burn an alcohol in a controlled way during a calorimetry experiment?
Candle
Spirit burner
Bunsen burner
What is produced when hydrogen reacts with oxygen?
Water only
Carbon dioxide only
Water and carbon dioxide
Which of these shows the correct balanced symbol equation for the combustion of hydrogen?
2H + O → H2O
H2 + O → H2O
2H2 + O2 → 2H2O
A teacher finishes using a Bunsen burner in an experiment and blows it out before switching off the gas. By blowing on the flame to extinguish it, which part of the fire triangle is being removed?
Heat
Fuel
Oxygen
What is the correct symbol equation for the combustion of methane, CH4?
CH4 + O2 → CO2 + H2O
CH4 + 2O2 → CO2 + 2H2O
CH4 + 2O → CO2 + H2O
What method is used to extinguish an electrical fire?
Carbon dioxide
Water
Turning off the appliance