Energy is required to remove two electrons from Ca to form Ca 2+ , and energy is
Question:
Energy is required to remove two electrons from Ca to form Ca2+, and energy is required to add two electrons to O to form O2 -. 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.
(c) CaO has a higher molar mass than either Ca or O.
(d) The enthalpy of formation of CaO is small.
(e) CaO is stable to atmospheric conditions.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Related Book For
Chemistry The Central Science
ISBN: 978-0134414232
14th Edition
Authors: Theodore Brown, H. LeMay, Bruce Bursten, Catherine Murphy, Patrick Woodward, Matthew Stoltzfus
Question Posted: