Energy is required to remove two electrons from Ca to form Ca 2+ , and energy is

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Energy is required to remove two electrons from Ca to form Ca²⁺, and energy is required to add two electrons to O to form O^{2 -}. Yet CaO is stable relative to the free elements. Which statement is the best explanation?

(a) The lattice energy of CaO is large enough to overcome these processes.

(b) CaO is a covalent compound, and these processes are irrelevant.

(d) The enthalpy of formation of CaO is small.

(e) CaO is stable to atmospheric conditions.

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Chemistry The Central Science

ISBN: 978-0134414232

14th Edition

Authors: Theodore Brown, H. LeMay, Bruce Bursten, Catherine Murphy, Patrick Woodward, Matthew Stoltzfus

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Question Posted: Nov 25, 2022 02:10 AM

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Energy is required to remove two electrons from Ca to form Ca 2+ , and energy is

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Chemistry The Central Science

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