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Chemistry, 22.06.2019 04:30
How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer
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Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?
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Chemistry, 22.06.2019 21:00
Read "who built the pyramids? ”. leave this link open while you answer the questions throughout the assignment. give at least two reasons why some people claim the pyramids of giza were constructed by aliens.
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Chemistry, 22.06.2019 23:30
Rank the following four acids in order of increasing bronsted acidity : h2f+ , ch3oh, (ch3)2oh+ , ch3sh2+
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What type of energy comes from the sun in the form of photons?...
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