Chemistry, 26.10.2020 22:00 rathaditi4036
What isotope used to date A fossilized trilobite from a bed of sandstone that is about 500 million years old. Why is it important to assume that the rate of radioactive decay has remained constant over time?
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Chemistry, 22.06.2019 14:30
The valence of aluminum is +3, and the valence of the chlorine is -1. the formula fir the aluminum chloride is correctly written as
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Chemistry, 22.06.2019 22:00
If a solution contains 3 moles/liter of sodium chloride (nacl, made of sodium ions and chloride ions), what is the osmolarity of this solution
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Chemistry, 23.06.2019 10:30
Using the periodic table, complete the following. element: hydrogen symbol: h₂ molecular weight: g mass of one mole: g/mol
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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.
Answers: 2
What isotope used to date A fossilized trilobite from a bed of sandstone that is about 500 million y...
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