Multiple Choice
Which of the following reactions is associated with the lattice energy of MgO (ΔH°latt) ?
A) Mg(s) + O(s) → MgS(s)
B) MgS(s) → Mg(s) + O(s)
C) Mg2⁺(aq) + O2⁻(aq) → MgO(s)
D) Mg2⁺(g) + O2⁻(g) → MgO(s)
E) MgO(s) → Mg2⁺(aq) + O2⁻(aq)
Correct Answer:

Verified
Correct Answer:
Verified
Q1: How many lone pairs of electrons are
Q146: Which of the following elements can form
Q147: A single covalent bond contains<br>A) 0 pairs
Q148: Draw the Lewis Dot structure for Al<sup>3+</sup>.
Q149: Choose the bond below that is least
Q150: Identify the compound that has polar bonds,but
Q152: Give the complete electronic configuration for Ca<sup>2+</sup>.<br>A)
Q154: Choose the best Lewis structure for SF<sub>4</sub>.<br>A)<br><img
Q155: How many lone pairs of electrons are
Q156: Identify the ionic compound that is used