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The flash point of ethanol is around 55°F, which is the correct answer. The flash point is the lowest temperature at which a liquid can form enough vapor to ignite in air. For ethanol, this means that at temperatures around or above 55°F, it can potentially ignite if exposed to an ignition source such as a flame or spark.
Understanding the significance of the flash point is crucial in firefighting and hazardous materials handling, as it indicates the safety and flammability of substances. Ethanol, being a common alcohol used in various applications, requires careful handling due to its relatively low flash point, making it more susceptible to combustion than substances with higher flash points.
In this case, the other answer choices do not accurately represent the flash point of ethanol, as they are either too low or too high based on the established safety data regarding the chemical properties of ethanol.