Chemistry, 28.11.2019 05:31 julionavedo21
Apiece of a newly synthesized material of mass 25.0 g at 80.0◦c is placed in a calorime- ter containing 100.0 g of water at 20.0◦c. if the final temperature of the system is 24.0◦c, what is the specific heat capacity of this material? 1. 4.76 j · g−1 · (◦c)−12. 1.19 j · g−1 · (◦c)−13. 0.84 j · g−1 · (◦c)−14. 0.30 j · g−1 · (◦c)−15. 7.46 j · g−1 · (◦c)−1
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Henry moseley used x-ray experiments to determine the atomic number of elements. how did his discovery contribute to the development of the periodic table? a.it confirmed that elements should be arranged in strict order of increasing atomic mass. b.it led to elements with similar atomic numbers being grouped together. c.it allowed the elements to be placed in strict order of increasing atomic number. d.it showed that the way mendeleev grouped elements together was completely wrong.
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Apiece of a newly synthesized material of mass 25.0 g at 80.0◦c is placed in a calorime- ter contain...
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