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Chemistry, 22.06.2019 09:00, yogibear5806
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.
Answers: 2
Chemistry, 22.06.2019 14:30, amylumey2005
How can carbon move from "land" to bodies of water? describe the way human impact has lead to increased levels of co2 in the atmosphere.
Answers: 2
Chemistry, 22.06.2019 19:00, innocentman69
How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next
Answers: 1
Chemistry, 22.06.2019 22:30, lanashanabJHsbd1099
Who discovered a pattern to the elements in 1869?
Answers: 1
How many of these transition metals have you heard of before?...
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