Chemistry, 12.03.2021 08:20 elsham3478
Consider an element Z that has two naturally occurring isotopes with the following percent abundances: the isotope with a mass number of 17 is 45% abundant; the isotope with a mass number of 20 is 55 % abundant. What is the average atomic mass for element Z?
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What is the main reason why some developing countries fear the increase the free trade policies around the world?
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The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a
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16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.
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What is the mass of naoh that would have to be added to 500 ml of a solution of 0.20 m acetic acid in order to achieve a ph of 5.0?
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Consider an element Z that has two naturally occurring isotopes with the following percent abundance...
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