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Chemistry, 20.06.2019 18:04
The air exhaled from the lungs of a smoker has a concentration of 24 ppm co. express the concentration as a percent.
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Write the empirical chemical formula of calcium with a mass percent of 38.8, phosphorus with a mass percent of 20.0, and oxygen with a mass percent of 41.3.
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Achemist has dissolved a certain substance in water. the chemist knows that more of the substance could be dissolved into the water before it stops dissolving. therefore
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Chemistry, 22.06.2019 21:30
Which of the following changes will decrease the total amount of gaseous solute able to be dissolved in a liter of liquid water? (2 points) decreasing temperature decreasing pressure decreasing surface area decreasing solute concentration
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¿Cuántos gramos de helio (4.003 g/mol) hay en un globo que contiene
8.50 L del gas a una temperatur...
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