When the stopper is removed from a partly filled bottle containing solid and liquid acetic acid at 16.7 degrees c a strong vinegar like odor is noticeable immediately. how many phases must be present in the bottle? explain.

warm front forms when a moist, warm air mass slides up and over a cold air mass. as the warm air mass rises, it condenses into a broad area of clouds. a warm front brings gentle rain or light snow, followed by warmer, milder weather.

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nuclear fission produces elements that are heavier than helium.

the elements that are used in nuclear fission and their products are much heavier than helium.