During combustion, fuel molecules are converted into nitrogen gas and oxygen.

The chemical changes in combustion result in the formation of sulfuric acid and nitrogen oxides.

The chemical changes that occur during combustion involve the oxidation of the fuel molecules to produce carbon dioxide, water, and heat.

Combustion involves the reduction of fuel molecules to produce carbon dioxide and water.

Brightness, flavor, sound

Taste, smell, touch

Temperature, color, shape, and size

Texture, sound, weight

Ensure proper ventilation, keep flammable materials away, use appropriate fuel sources, have fire extinguishing equipment nearby, follow safety guidelines.

Ignore safety guidelines

Use water to put out fires

Wear flammable clothing

Enhanced air quality

Reduced emissions

Increased efficiency

Formation of harmful byproducts such as carbon monoxide, soot, and unburned hydrocarbons

A chemical reaction where a fuel burns in an excess of oxygen to produce carbon dioxide and water vapor.

A reaction where a fuel burns to produce water vapor only

A chemical reaction where a fuel burns without oxygen

A process where a fuel produces only carbon dioxide

Combustion is slower than burning.

Combustion is a specific type of burning that is rapid and produces heat and light.

Combustion is a type of freezing.

Combustion does not produce heat or light.

To create a cozy atmosphere

To ensure there is enough oxygen available for the combustion process and to prevent the production of harmful byproducts.

To increase the combustion temperature

To reduce the noise level

Oxygen reduces the temperature required for combustion.

Oxygen acts as the oxidizing agent in combustion.

Oxygen absorbs heat in combustion.

Oxygen acts as a catalyst in combustion.

Ensure proper air supply, maintain correct fuel-to-air ratio, use clean fuel, and properly maintain combustion equipment.

Neglect combustion equipment maintenance

Use dirty fuel

Increase fuel-to-air ratio