Any substance that can undergo combustion is called what?

Any substance that can undergo combustion is called what?

• A. Fuel
• B. Oxidant
• C. Ignitable Substance
• D. Vapor

Answer: (A)

Combustion requires a substance that provides the chemical energy to be released during burning. The material that can undergo burning and release that energy is called a fuel. In a fire, the fuel reacts with an oxidizer (usually the oxygen in air) when heat is present, producing heat, light, and reaction products. The oxidant is the substance that accepts energy, not the one burning, so it’s not the term for what’s burning. An ignitable substance describes anything that can catch fire, but it doesn’t specify the ongoing role of supplying energy for combustion. A vapor is only a phase of matter and doesn’t define whether a substance can burn. So the best term for any substance that can undergo combustion is fuel.

Combustion requires a substance that provides the chemical energy to be released during burning. The material that can undergo burning and release that energy is called a fuel. In a fire, the fuel reacts with an oxidizer (usually the oxygen in air) when heat is present, producing heat, light, and reaction products. The oxidant is the substance that accepts energy, not the one burning, so it’s not the term for what’s burning. An ignitable substance describes anything that can catch fire, but it doesn’t specify the ongoing role of supplying energy for combustion. A vapor is only a phase of matter and doesn’t define whether a substance can burn. So the best term for any substance that can undergo combustion is fuel.