Chemistry, 27.07.2019 14:30 kingofmortals6981
In nature, oxygen has three common isotopes. the atomic masses and relative abundances of these isotopes are given in the table below. isotope atomic mass (amu) relative abundance o-16 15.995 99.759% o-17 16.995 0.037% o-18 17.999 0.204% calculate the average atomic mass of oxygen. show all of your calculations below.
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Chemistry, 21.06.2019 15:30
Which of the following mining methods disrupts the sea floor?
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Several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear, is white. what process led to this difference in fur color? explain your answer.
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Chemistry, 22.06.2019 04:40
Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)
Answers: 2
In nature, oxygen has three common isotopes. the atomic masses and relative abundances of these isot...
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