Chemistry, 19.11.2020 17:00 smith3mgy

We can witness cosmic microwave radiation
when we?

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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.

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Chemistry, 23.06.2019 03:00, cabreradesirae4807

Select the correct answer. wax is a nonpolar substance. in which type of substance is it most soluble?

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Chemistry, 23.06.2019 03:30, alecnewman2002

The molar mass of iron(fe) is 55.8 g/mol. what is the mass in grams of 2.25 moles of iron?

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Chemistry, 23.06.2019 08:00, ira51

The goal of this experiment was to answer the question "what is the effect of a gas' temperature on its volume? " you formulated the hypothesis below. hypothesis: if a fixed amount of gas is heated, then the volume will increase because the heat will cause the molecules of gas to move faster and further apart. to test this hypothesis, you changed the of the gas between 0 and 100°c (273 and 373 k) and calculated the resulting of the gas.