The gemstone sapphire (see image) is mostly a compound of aluminum and oxygen that contains aluminum cations, Al3+, and oxygen anions, O2−. What is the formula of this compound? Figure 2.31 Although pure aluminum oxide is colorless, trace amounts of iron and titanium give bluesapphire its characteristic color. (credit: modification of work by Stanislav Doronenko)

The gemstone sapphire is the mineral corundum. It contains aluminium cation and oxygen anion.…

Answered: Figure 2.31 Although pure aluminum…

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter7: The Structure Of Atoms And Periodic Trends

Section: Chapter Questions

Problem 82SCQ

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The gemstone sapphire (see image) is mostly a compound of aluminum and oxygen that contains aluminum cations, Al³⁺, and oxygen anions, O²⁻. What is the formula of this compound?

Figure 2.31 Although pure aluminum oxide is colorless, trace amounts of iron and titanium give blue
sapphire its characteristic color. (credit: modification of work by Stanislav Doronenko)

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