Mercury in a manometer is 73.8 mm lower on the side connected to a sample of oxygen gas. If the atmospheric pressure is 1.30 kPa, determine the pressure of the oxygen.

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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i think its 100.

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qualitative observation deals with data that can be observed with our senses: sight, smell, touch, taste, and hearing. they do not involve measurements or numbers. for instance, colors, shapes, and textures of objects are all qualitative observations.