Chemistry, 19.11.2020 18:00, kobiemajak
What is the energy of a wave having a frequency of 9.83 x 1013 Hz?
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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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About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?
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Chemistry, 22.06.2019 21:40, fatherbamboo
A5 mole sample of liquid acetone is converted to a gas at 75.0°c. if 628 j are required to raise the temperature of the liquid to the boiling point, 15.600 kj are required to evaporate the liquid, and 712 j are required to raise the final temperature to 75.0°c, what is the total energy required for the conversion?
Answers: 3
What is the energy of a wave having a frequency of 9.83 x 1013 Hz?...
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