In the image are several types of burners used in many chemistry laboratories.
-Whether these burners use natural gas, propane or butane as a fuel, which of the following is true?

Question

In the image are several types of burners used in many chemistry laboratories. 
-Whether these burners use natural gas, propane or butane as a fuel, which of the following is true?

Quizplus · Accepted Answer

Combustion reactions involve the burning of a fuel with oxygen, which are also redox reactions as they involve the transfer of electrons. These reactions release energy, making them exothermic. Therefore, all statements are correct.

In the Image Are Several Types of Burners Used in Many