Chemistry, 22.10.2019 02:00, jstringe424
Asample contains 18.0 g n2 (mw = 28.02 g/mol), 50.5 g he (mw = 4.00 g/mol), and 34.6 g co2 (mw = 44.01 g/mol). calculate the mole fraction of carbon dioxide in the sample.
Answers: 1
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Why is the melting of ice a physical change ?
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[ou.03jthe pictures below show the wavelengths and intensities of electromagnetic radiations emitted by three stars, star 1, star 2, and star 3. intensity intensity- intensity- 1000 3500 6000 8500 11000 wavelength (a) star 1 1000 3500 6000 8500 11000 1000 3500 6000 8500 11000 wavelength (a) wavelength (a) star 2 star 3 which of these statements is correct about the color of the three stars? star 2 is white in color o star 2 is yellow in color star 1 and star 3 are yellow in color star 1 and star 3 are white in color
Answers: 1
Asample contains 18.0 g n2 (mw = 28.02 g/mol), 50.5 g he (mw = 4.00 g/mol), and 34.6 g co2 (mw = 44....
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