Chemistry, 20.11.2019 03:31 adrianayepez8

If a patient\'s blood pressure is 145 over 85 mmhg, what is it in atmospheres (atm)?

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Chemistry, 23.06.2019 00:00, familyk0jj3

How do you determine the percent yield of a chemical reaction

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Chemistry, 23.06.2019 00:10, graceception

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Chemistry, 23.06.2019 10:30, malum2009

Can anyone explain 1. review your spectrometry data and use the known elements to identify the star's composition. which unknown elements make up this star? justify your element selections. 2. in parts i and ii of the lab, what happened to the electrons of each element to produce the different colors of light? explain your answers using important terms from the lesson and information provided in the laboratory. 3. stars composed of heavier (more massive) elements are often slightly older than stars made predominantly from hydrogen and helium. based on your data, is the newly discovered star a younger star? explain your answer.