The average atomic mass of an element does not account for naturally
occurring isotopes.
True...
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Chemistry, 23.06.2019 04:31
One student said that the investigation was not valid (a fair test). write a plan for the investigation that includes improvements to the method and apparatus
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Chemistry, 23.06.2019 10:30
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.
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Chemistry, 23.06.2019 12:30
Is the genie in the bottle experiment a physical or chemical change/reaction?
Answers: 1
Chemistry, 23.06.2019 14:30
Hydrogen has three isotopes 1h, 2h, and 3h. what is the difference between these three isotopes?
Answers: 2
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