Is flettening a chemical change? No. Flattening is a physical change because it does not cause a change in chemical composition.
Many fire extinguishing systems are built into the building or other structure being protected. Water sprinklers are by far the most common type of …
Is putting out a fire a physical or chemical change? – Quora
When you put out a fire, you are stopping a chemical change from proceeding. But if you mean the actual physical orange stuff which licks the air, then that’s a physical change because the orange colour comes from red hot air particles which can be reheated up.
Fire is a chemical change, known as combustion, that occurs when sufficient heat is applied to fuel in oxygen. Chemical changes cause alterations of molecular compositions. This differs from a physical change, where only an object’s physical properties are altered. Understanding the science behind this isn’t complicated, but the science lingo is.
People Also Ask is extinguishing a fire a chemical change
Is fire a chemical change?
Fire can exist on either side of a chemical reaction. It is the result of a chemical change, and fire can cause a chemical change. Fire creates heat, a characteristic of chemical change, and heat is needed to ignite fuels to create combustion or burning. Think about all the times in your life you’ve experienced the creation of flames.
What are the chemicals in a fire extinguisher?
Playing With Fire Flame Color Chemical Red Strontium Nitrate (flares) Lithium Salt … Orange Calcium Chloride (bleaching powder) Yellow Sodium Chloride (table salt) Green Boric Acid (disinfectants, pest control … 2 more rows …
Why don’t fire extinguishers use CO2?
In these situations, fire extinguishers use different materials–ones that flood a protected compartment with a fire-fighting gas. CO2 works well, but is fatal at the concentrations necessary to extinguish a fire, and so cannot be used where people will be present.
How do HFCS extinguish fires?
HFCs extinguish fires in a manner similar to CO2 or N2 –by absorbing heat and reducing the concentration of oxygen. Even so, several different companies are marketing such HFCs as CHF3, C2HF5, and C3HF7 for a variety of applications.
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Physical and Chemical Changes: Chemistry for Kids – FreeSchool Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher