You know Greek Fire you mix certain chemicals together then put the chemicals on fire and then the more water you add to the fire the bigger the flames get and the fire spreads.  It was used in the Middle Ages.
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Greek fire (also called Byzantine fire, wildfire and liquid fire, Greek Υγρό Πυρ, igró pir) was a weapon used by the Byzantine Empire, said to have been invented by a Syrian Christian refugee named Kallinikos (Callinicus) of Heliopolis (Syria), probably about 673.\nThe ingredients, process of manufacture and usage were a very carefully guarded military secret, so secret it remains a source of speculation to this day. Speculations include:\n\n    * naptha, niter, sulfur\n    * petroleum, quicklime, sulfur\nThese ingredients were apparently heated in a cauldron, and then pumped out through a siphon or large syringe, known as a siphonarios mounted on the bow of the ship. It could also be used in hand grenades, made of earthenware vessels. If a pyrophoric reaction was involved, perhaps these grenades contained chambers for the fluids, which mixed and ignited when the vessel broke on impact with the target.
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According to current theory, 4 billion years ago (4 bya) the atmosphere had no free oxygen.\n\nAbout 3 bya, cyanobacteria evolved, which produce oxygen as a waste product of their photosynthesis.  This oxygen was poison for many forms of life, resulting is mass extinctions.\n\n2.5 bya, there was enough free oxygen in the atmosphere for organisms with modern oxygen based metabolisms to evolve.\n\nSo, sometime between 3 bya and 2.5 bya, fire became possible.
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combustion means oxidation with oxygen. it is done by burning in air.\nHence Mg + heat is combustion reaction. It gives MgO upon reacting with oxygen. But it also reacts with the Nitrogen in the air by giving Mg3N2. That is the side reaction, ofcourse.
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Short answer: you can't burn salt.\n\nLong answer: burning typically refers to something + oxygen --> carbon dioxide + water.  Salt simply cannot undergo that reaction.  Some salts can contain organic matter which can be burned, but most salts do not.  Furthermore, some salts contain metals which, when electronically excited by the heat of the flame, emit colors (this is how fireworks generate color--different metals give different colors).  But you're not burning the salt.  By the way, you may not be burning the sugar either--it takes a while to burn it, at first you just melt it.
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A flame is a mixture of gases undergoing a chemical reaction that gives off enough heat to continue the reaction in the molecules that have not yet reacted.  We get the impression that solids (like wood) burn, but it's really mainly the gases coming off of them that burn.  That's why it's easier to start a hot piece of wood on fire than a cold piece of wood.  The initial piece has to be hot enough so that the flamable products escape from it in vapor form.
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Fire is not matter. The combustible material is a 'solid' like  wood, but can be a 'liquid' like gasoline. The wood combusts, releasing 'gases' such as Carbon Monoxide and solids such as ash particulates. The "fire" is the energy released in the form of heat and light. That's my simple explanation.
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I read a whole book of supposed  instances of spontaneous human combustion, and most of the time it was caused by excess drinking in a hot room or near a fireplace. It kinda makes sense because the amount of alcohol in your blood could cause you to be more flammable. Again, none of this is proven scientifically.
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Once all the oxygen has been depleted the fire will burn itself out. Any fire must have oxygen to continue to burn. Different types of material burn at different temperatures and also determine the color of the smoke and the flame.
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Fire related disasters range from burning kitchens to cities & forests ablaze.Precautions are many like fire lines(areas cleared of grass,leaves etc. to prevent spread of fire from 1 part of the forest to the other) and keeping flammable substances away from fire
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The history of chemistry may be said to begin with the distinction of chemistry from alchemy by Robert Boyle in his work The Sceptical Chymist (1661). Both alchemy and chemistry are concerned with the nature of matter and its transformations but, in contrast with alchemists, chemists apply the scientific method. The history of chemistry is intertwined with the history of thermodynamics, especially through the work of Willard Gibbs.\n\n\n\nOrigins\n\nAlthough the archives of chemical research draw upon work from ancient Babylon, Egypt, and especially Persia after Islam, the birth of chemistry is often dated to Antoine Lavoisier's discovery of the law of conservation of mass, and thereby to his refutation of the phlogiston theory of combustion in 1783. (Phlogiston was supposed to be an imponderable substance liberated by flammable materials in burning.) Mikhail Lomonosov independently established a tradition of chemistry in Russia in the 18th century. Lomonosov also rejected the phlogiston theory, and anticipated the kinetic theory of gases. He regarded heat as a form of motion, and stated the idea of conservation of matter.\n\nThe vitalism debate and organic chemistry\n\nAfter the nature of combustion (see oxygen) was settled, another dispute, about vitalism and the essential distinction between organic and inorganic substances, was revolutionized by Friedrich Wöhler's accidental synthesis of urea from inorganic substances in 1828. Never before had an organic compound been synthesized from inorganic material. This opened a new research field in chemistry, and by the end of the 19th century, scientists were able to synthesize hundreds of organic compounds. The most important among them are mauve, magenta, and other synthetic dyes, as well as the widely used drug aspirin. The discovery also contributed greatly to the theory of isomerism
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Water is what you get when you burn hydrogen. After combustion the bonds between the H and O atoms are so strong, that no more burning happens.\n\nWhen you burn any molecule that contains hydrogen, like CH_4,\nnatural gas, the same thing happens. All the hydrogen ends up in water molecules.
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Who cares, all flames are hot.\n\n"The color and temperature of a flame are dependent on the type of fuel involved in the combustion."
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The colours produced by certain chemicals in the flame test are added to fireworks, so that when the firework explodes, the heat sets the chemical on fire, creating the wide variety of colours seen in fireworks.
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Just the water evaporates leaving behind the salt.  Some places along the Mediterranean they have a process that the salt water goes though leaving behind the salt that we use.  They have several locks that the salt water drain from and finally ends up as a pile of salt to be processed.\nOh by the way clouds don't melt.  The water vapors get heavy until they're so heavy the the water drop as rain droplets.No they do not mix into a different form of water.\nNO! NO! NO! to all the rest of your question.\nChuck
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Well I could make it as complex and confusing as some but I will keep it simple.  The color of a flame is determined by the material that is burning. The color also denotes temperature of a flame. (yes there are different degrees of hot). Sodium will give a yellow flame. Have a gas stove? Notice the flame has two colors of blue, the inner flame is a different shade than the outer shade, look at a match, the flame closest to the center of flame is yellowish while the outer is reddish. The center is hotter in both flames.\nAdding a chemical to the fire will change color, copper will burn blue, both from chemical and its flame hotter than the average yellow fire.  The quantity of flame or size is why we cant tell the difference in heat from all these small flames and we say they are hot.
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For the most part, fire is a mixture of hot gases. Flames are the result of a chemical reaction, primarily between oxygen in air and a fuel, such as wood or propane. In addition to other products, the reaction produces carbon dioxide, steam, light, and heat. If the flame is hot enough, the gases are ionized and become yet another state of matter: plasma.
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The air surrounding the fire is heated. \n\nHot air is less dense than cold air.\n\nLess dense air goes up; while cold air replaces the hot air and is heated,\n\nThus a convection of air current is set up continuously giving the flame the obvious figure.\n\nBy blowing air through a nozzle we can change the direction of flame.