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Nanoparticle was synthesis from silver atoms with 1.8 nm of diameter. Find the ratio of the surface atoms of this particle.
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- A new compound has the empirical formula GaCl2. Thissurprises some chemists who, based on the position of gallium in the periodic table, expect a chloride of gallium to have the formula GaCl3 or possibly GaCl. They suggest that the “GaCl2” is really Ga[GaCl4], in which the bracketed group behaves as a unit with a -1 charge. Suggest experiments to test this hypothesisCalculate the densHy of Zinc using the atomic masS Gf Zinc and W dimensions of 3.5 x 2.5 x 2.5mmWhy must atomic masses be weighted averages rather than conventional average values?
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- Since ore can contain copper and other minerals, what imaging technique can you use that can determine the elemental composition of elements and how the elements in the ore are being distributed? Explain how this imaging technique works.A 0.400-g sample of Niobium(IV) oxide is reacted with oxygen gas, yielding 0.4256 g of a new compound, NbxOy. Write a balanced chemical equation for this reaction (include state symbols to indicate whether each compound is solid, gas, liquid, etc.). You may write your coefficients in terms of x and y. What is the molecular formula of the new compound (that is, what are the values of x and y)?Calculate the average atomic mass of Amazium, a newly discovered element (Amazium, symbol Az) which is determined by mass spectrometry to have two isotopes with the following masses and percent (%) composition (abundance) Show work.