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Strongest Superacid
The world's strongest superacid is fluoroantimonic acid, HSbF6. It is formed by mixing hydrogen fluoride (HF) and antimony pentafluoride (SbF5). Various mixtures produce the superacid, but mixing equal ratios of the two acids produces the strongest superacid known to man.
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Properties of Fluoroantimonic Acid Superacid
Rapidly and explosively decomposes upon contact with water. Because of this property, fluoroantimonic acid cannot be used in aqueous solution. It is only used in a solution of hydrofluoric acid.
Evolves highly toxic vapors. As the temperature is increased, fluoroantimonic acid decomposes and generates hydrogen fluoride gas (hydrofluoric acid).
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The use of the population register for vital statistical purposes entails linking events to the pertinent population at risk. The timeliness of the updating of the population register and the accuracy of the information recorded therein are thus factors critical to the quality of the statistics to be computed.
Mass is a measure of how much matter an object has. Weight is a measure of how strongly gravity pulls on that matter.
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