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Achemical compound once used as a propellant in aerosol sprays is called
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Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.
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Chemistry, 23.06.2019 12:30
)a children’s liquid cold medicine has a density of 1.23 g/ml. if a child is to take 2.5 tsp in a dose, what is the mass in grams of this dose? (1 tsp = 5 ml)
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Chemistry, 23.06.2019 19:00
Covalent bonds have a higher melting points than ionic bonds. true or false
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Chemistry, 23.06.2019 20:50
Explain what happens to a gas when it is put into a container?
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Achemical compound once used as a propellant in aerosol sprays is called...
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