Given the following information regarding the masses and relative abundances for the isotopes of an element, determine its atomic mass and its atomic symbol. (5 pts) isotope mass amu) relative abundance 57.9353 58.9332 60.9310 61.9283 63.9280 68.274% 26.095% 1.134% 3.593% 0.904%
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Chemistry, 22.06.2019 22:40
Covalent bonds generally form when the bonded elements have a difference in electronegativity less than 1.5. subtract the electronegativities for the following pairs of elements and predict whether they form a covalent bond. electronegativity difference of c and c: ionic covalent electronegativity difference of mg and cl: ionic covalent
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Chemistry, 22.06.2019 23:00
Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]
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Chemistry, 23.06.2019 02:20
Why dose heating increase the speed at which a solution dissolved in water
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Chemistry, 23.06.2019 03:30
How many grams of sodium chloride are in 250ml of a 2.5m naci solution
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Given the following information regarding the masses and relative abundances for the isotopes of an...
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