Answer: A paper can be burnt with a burning matchstick because of its low ignition temperature. The charge of Israel using white phosphorus has been disputed by the International Red Cross, which stated that it had no evidence to suggest that white phosphorus is being used improperly or illegally by Israel. The entire NCERT textbook questions have been solved by best teachers for you. ... For example white phosphorus is stored under water and sodium is stored under kerosene to avoid spontaneous combustion. White phosphorus munitions can be used on battlefields to make smoke screens, generate illumination, mark targets or burn bunkers and buildings. 7. "White phosphorus burns spontaneously in air. Favourite answer You do not want to be messing with either of these unless you are a well trained lab tech, chemist, chemical engineer, or whatever, and you are working with all appropriate safety equipment, including a fume hood, eye protection, and appropriate gloves. Free PDF Download - Best collection of CBSE topper Notes, Important Questions, Sample papers and NCERT Solutions for CBSE Class 8 Science Combustion and Flame. Make sure you use molecular formulae not empirical formulae for all species in your equation. S Chand Science Class 8 Solutions Chapter 6 Combustion and Flame Lakhmir Singh Science Class 8 Chapter 6 Very Short Answer Type Questions Question 1. When ignited and used on people, it sticks to their skin and causes horrific burns.
Reason: White phosphorus exists as individual having more strained geometry while red phosphorus has tetrahedron structure linked together. Occasionally, just for fun, we would hack off a fist-sized lump of sodium and throw it into the canal nearby. Can turn chalk into bones! Write a balanced equation for the combination of white phosphorus and oxygen to form product X. Choose from 500 different sets of phosphorus flashcards on Quizlet. Asseration: White phosphorus is less stable whereas red phosphorus is more stable. how can israel explain its widespread shelling of such a chemical against civilians in Gaza even on UN schools? Extinguishing White Phosphorus Fires | C&EN Global Enterprise. Food: White phosphorus cannot be used to contaminate food. White phosphorus munitions are weapons which use one of the common allotropes of the chemical element phosphorus.White phosphorus is used in smoke, illumination and incendiary munitions, and is commonly the burning element of tracer ammunition. If service members are hit by pieces of white phosphorus, it could burn right down to the bone. would greatly appreciate any answers..have searched all around, and can't find anything. WHITE phosphorus is a waxy, highly toxic substance which melts at 44.8° C, and ignites spontaneously at ordinary temperatures ( 1 ). how can israel explain its widespread shelling of such a chemical against civilians in Gaza even on UN schools? Weakness: Gives supervillains Fossey Jaw! Outdoor Air: White phosphorus can enter outdoor air as smoke. It depends on how quickly and how much pain you want to suffer while dying. WhiteAmericanMedia is the answer to “The Platform Question.” For creators, we’re here to facilitate your transition away from enemy territory – so you can fight another day. White phosphorus has to be stored in water to prevent natural combustion, but red phosphorus is … ★★★ Correct answer to the question: How does the author develop the idea that relying on nature was problematic? Water will put out white phosphorus temporarily, but as soon as the phosphorus has access to air, it will start burning again. The largest organ in the body is our skin , each square inch containing many nerve and pain receptors. Fires cannot be extinguished! Finland prohibited the use of white phosphorus in 1872, followed by Denmark in 1874, France in 1897, Switzerland in 1898, and the Netherlands in 1901. These weapons are particularly nasty because white phosphorus continues to burn until it disappears. Don't hold the nozzle, the cooling during the discharge of gas can freeze your skin. By means of degrees--Fahrenheit or Celsius--how hot can/does this WP get once it ignites? Skin contact can result in severe burns. It will still smolder and burn within itself, but you can keep it from spreading while it burns itself out. The oxide reacts readily with water to form product Y. When I was in my first job we were working with sodium metal. Lakhmir Singh Science Class 8 Solutions Chapter 6 Combustion And Flame provided here is prepared by subject experts, according to the latest CBSE syllabus. Correct answers: 1 question: STORIES OF USEFUL INVENTIONS, excerpt By S. E. Forman 1911 THE MATCH There never was a time when the world was without fire, but there was a time when men did not know how to kindle fire; and after they learned how to kindle one, it was a long, long time before they learned how to kindle one easily. Correct answers: 1 question: help STORIES OF USEFUL INVENTIONS, excerpt By S. E. Forman 1911 THE MATCH There never was a time when the world was without fire, but there was a time when men did not know how to kindle fire; and after they learned how to kindle one, it was a long, long time before they learned how to kindle one easily. Is there ANYWHERE in Yahoo Answers that has not become overrun with antisemitic war mongering propagandists demonizing Israel for what Hamas is doing? For viewers, we’re here to provide you with the opportunity to finally support the creators you love – … White phosphorus: White phosphorus, as used by the army, is a gas-like cloud of particles that burn very hot when ignited. They can also be used on small class B (liquid) fires, but cooling effects on the liquid are limited and the fire may re-ignite after it has been extinguished. (Actually it will do this to anybody, not just supervillains!) Red phosphorus can be converted to white phosphorus by careful heating. The wounds are distinctive and much harder to treat than ordinary burns, the doctors say, in part because phosphorus sticks to the skin and can burn for hours. Contact with these particles can cause local burns. Red phosphorus (provided it is not contaminated with white phosphorus) is considered non-toxic. Pubs.acs.org WHITE phosphorus is a waxy, highly toxic substance which melts at 44.8° C, and ignites spontaneously at ordinary temperatures ( 1 ). Learn phosphorus with free interactive flashcards. White phosphorus consists of \(\ce{P4}\) molecules, whereas the crystal structure of red phosphorus has a complicated network of bonding. ... A fire can be extinguished by applying different methods. Use your own eyes. Therefore you can disregard everything you were ever told about white phosphorus. (a) What is the molecular formula for product X? Please respond in three to five complete sentences, using evidence from the text to support your answer. WHITE phosphorus is a waxy, highly toxic substance which melts at 44.8° C, and ignites spontaneously at ordinary temperatures ( 1 ). The use of this material as an antipersonnel agent, in incendiary bombs, and as a smoke-producing chemical has intensified the military and industrial problems of control of phosphorus fires. (Bones are calcium phosphate) Turns cheese into Cheese Wiz! It can't be extinguished by water, only by smothering which deprives it of oxygen. White phosphorus is often explosive when exposed to air and so is stored in water tanks. White phosphorus can combine with excess oxygen to form a phosphorus oxide (product X). WP, or white-phosphorus, when used as an incendiary weapon (i.e., such as a 40mm WP grenade), causes a blast ensued by 'sticky fire.' Characteristics: White phosphorus is a highly reactive, waxy, white-yellow, transparent solid with acrid fumes. White Phosphorus is a Chemical that is used ONLY to generate smoke clouds to hide army movement but is BANED internationaly to be used in civilian areas as it burns & penetrate inside the human body,then it reacts inside the body till it reaches the bones! Answer: Ignition temperature is the lowest temperature at which a substance catches fire. White phosphorus burns as long as it's exposed to oxygen, and it can reach temperatures well over 1,000 degrees. White phosphorus is highly toxic. White phosphorus wounds are very unpleasant, since the phosphorus must be thoroughly washed out with a nonpolar solvent that is also noninflammable, for obvious reasons, before the burn can be treated. When it ignites, it's... See full answer below. (5 points) - edu-answer.com (This is actually true for white phosphorous, also known as Willey Pete). However, white phosphorus continued to be used, and its serious effects led many countries to ban its use. Other common names include WP and the slang term "Willie Pete" or "Willie Peter" derived from William Peter, the World War II phonetic alphabet for … White Phosphorus is a Chemical that is used ONLY to generate smoke clouds to hide army movement but is BANED internationaly to be used in civilian areas as it burns & penetrate inside the human body,then it reacts inside the body till it reaches the bones! Agricultural: If white phosphorus is released as smoke, it is unlikely to contaminate agricultural products; however, particles of white phosphorus that do not react with air may contaminate agricultural products. Download the solution in … When falling from the sky, they can’t create fires or cause severe burns. The felt wedges of the M825A1 smoke shell go out almost immediately. White phosphorus is dangerous because it can spontaneously ignite at temperatures above approximately 86 degrees Fahrenheit. For example; LPG, petrol, […] You must completely rob it of oxygen. 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