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3. Given the unit cells shown, determine the formula for the compound: NiAsTi2+Ca2+O2 4. (Tro 13.40 and 39) Identify each solid as molecular, ionic or

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3. Given the unit cells shown, determine the formula for the compound: NiAsTi2+Ca2+O2 4. (Tro 13.40 and 39) Identify each solid as molecular, ionic or atomic. a. CaCl2(s) b. CO2(s) c. Ni(s) d. l2(s) e. K2O(s) f. H2O(s) 5. (Tro 13.82) The density of an unknown metal is 12.3g/cm3, at its atomic radius is 0.134nm. It has a face-centered cubic lattice. Find the atomic mass and idenity of this metal

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