Is the reaction between Potassium Hydroxide and Nitric Acid EXTREMELY dangerous?
There are several different kinds of fire extinguishers. The main ingredient in the extinguisher you might find in a building or your home is filled with CO2 or carbon dioxide. Every time you exhale you omit CO2 as a bi-product of oxygen. There is a basic principal to fire called a tetrahedron. Basically you have 3 main components of fire. Fuel, heat and oxygen. By displacing the oxygen with CO2 you now are left with only 2 components. This makes it impossible for fire to exist. Now in the atmosphere we breath a mixture of approximately 79% Nitrogen and 21% Oxygen the rest are inert gases like neon that are just floating about. So that's how oxygen gets in the fire. I am sure you remember Stop, drop and roll The concept here was to smother the fire. A type of fuel can be anything like wood or paper. Heat can be created from friction. If you're really good at creating fires you can do it with stones. Rubbing or hitting the stones causes friction and heat which in turn create a spark. The continuous burning keeps the fire hot! So CO2 is the chemical that kills fires. But remember there are several different types of fire extinguishers. Just like there are several different types of fires. For example if you were fighting a grease fire you wouldn't use water. Another extinguisher is something call A triple F or Aqueous Film Forming Foam. This is pretty cool stuff. You can use it on oil and gasoline fires it works the same way CO2 does by smothering the fire. The fire extinguisher is comprised of a tank, an accelerator the propellant that's in the tank a pull pin and a discharge lever. The alternative ingredient would be things like A-FFF or water, sand etc. One last note you have 3 classifications of fire. A -Wood, cloth or paper B -Gasoline, oil C -Wires or circuit breakers I hope that helps.
a jinn experience actually back in my old house.. i was sleeping on the floor in the living room.. (don't ask why?) but we have an arch that connects the kitchen to the living room. I am sleeping and suddenly i wake up and it seems like my grandpa all dressed up ready to go to mosque is standing there, yet it's like night. Definetely not my gramps.. i pulled teh covers over my head and started praying.. i dare not lift the covers up i was so scared. Next morning i ask my gramps if he was there he says no. Then i said it on the breakfast table and i was scared that people would say that i was lying. Actually my mom and my aunt mention they have seen the same jinn standing right by the arch at night. But half of my family still lives there.. we figured since the jinn was dressed in a prayer outfit and has not done any harm.. it's a good jinn and we are not afraid of it anymore.. but yeah this was all back in India i was about 10 or 11 but boy i will never forget that! This was a life changing experience because ever since i am very interested in the paranormal EDIT: people who don't believe or make fun of ppl who have seen it.. not everyone can see it.. i think you have to be open minded about them to actually see them. i have also sensed that a mansion was haunted after a year later i researched and found out that it was haunted. They will only make them selves seen to people who want to actually see them.
I *think* an average ABC extinguisher uses CO2 (Carbon Dioxide) to kill the fire. It works on 2 levels: 1) it's very cold; remove the heat, kill the fire. 2) it helps block oxygen from getting to the fire; no O2, no fire.