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Acholi Chemistry

fire

Types of fire
There are several types of fire, categorized based on the material burning and the appropriate method of extinguishing. Class A fires involve ordinary combustibles like wood, paper, or cloth, and are extinguished with water or foam. Class B fires involve flammable liquids such as gasoline, oil, or alcohol, and are best extinguished with foam, dry chemicals, or CO₂. Class C fires are electrical fires and require non-conductive extinguishing agents like CO₂ or dry chemicals to prevent electrocution. Class D fires involve combustible metals like magnesium or sodium, and specialized dry powders are used to extinguish them. Lastly, Class K fires occur in cooking oils and fats, typically in kitchens, and require wet chemical extinguishers to prevent the fire from reigniting. Understanding these types is crucial for applying the correct fire-fighting technique.

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What gives fire
Fire is a chemical reaction known as combustion, where heat, fuel, and oxygen interact in the right proportions to produce flame, light, and heat. This process is driven by the fire triangle, which consists of three essential elements: fuel, oxygen, and heat. Without any one of these, fire cannot start or sustain itself.

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What brings fire
Fire is brought about by the combination of three key elements: fuel, oxygen, and heat, forming what is known as the fire triangle. When a fuel source, such as wood, gasoline, or paper, is exposed to enough heat to reach its ignition temperature and is in the presence of oxygen (usually from the air), a chemical reaction called combustion occurs. This reaction releases energy in the form of heat and light, sustaining the fire. If any one of these elements—fuel, heat, or oxygen—is removed or insufficient, the fire cannot start or will be extinguished.

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