a. For each pair of compounds, suggest which will have the most exothermic lattice energy.

i. $\mathrm{KCl}$ and $\mathrm{BaO}$ (ionic radii are similar)

ii. $\mathrm{MgI}_2$ and $\mathrm{SrI}_2$

iii. $\mathrm{CaO}$ and $\mathrm{NaCl}$ (ionic radii are similar).

b. Place the following compounds in order of increasingly exothermic lattice energy. Explain your answer.

$\mathrm{LiF}$ $\quad \mathrm{MgO} \quad \mathrm{RbCl}$

Write formulas to illustrate the difference between each pair of compounds.
a. sodium sulfide and sodium sulfate
b. magnesium oxide and magnesium hydroxide
c. magnesium sulfate and magnesium bisulfate

Which of the following compounds exhibits hydrogen bonding?

1. CH$_3$
2. HBr
3. CH$_3$OCH$_3$
4. CH$_3$NH$_2$

Each line, when completed, should have three words similar in meaning. Enter all missing letters

impart ___ ___ ___ $\hspace{1cm}$___ ___ bias ___ __$\hspace{1cm}$quit ___ ___ ___

Reread the fourth paragraph of Chaper 1. What seems to be Nick's attitude toward Gatsby?

Water dissolves ionic compounds because water molecules

a. are nonpolar.

b. have a pH value of $14$ or greater.

c. have partially charged ends.

d. do not contain atoms.

Which of the following are ionic compound, and which are covalent compounds: $\mathrm{RbCl}, \mathrm{PF}_5, \mathrm{BrF}_3$. $\mathrm{KO}_2$, and $\mathrm{Cl}_4$ ?

How would you describe the speaker's attitude toward death? Support your answer with textual evidence.

How does Octavia Hill's attitude toward the poor compare to those of others you have read?

True or False. After hearing that her friend Jim won a jackpot at the casino, Claire Voiant said she knew he would win. This is an example of a hindsight bias.

Predict the relative acid strengths of the following compounds.

$\mathrm{H}_3 \mathrm{PO}_4, \mathrm{H}_2 \mathrm{PO}_4^{-}$, and $\mathrm{HPO}_4{ }^{2-}$

Complete Table 5.A (on page 138) by writing the names and formulas for the ionic compounds formed when the cations listed across the top combine with the anions shown in the left-hand column.

$^{12}\mathrm{C}$ and $^{14}\mathrm{C}$ are

a. atoms of different elements.

b. isotopes.

c. atoms with different atomic numbers.

d. atoms with different numbers of protons.

e. compounds.

Who sits with Granny during her final hours? Assess: What is Granny's attitude toward this person?