Problem 110
Predict the shape and polarity of each of the following molecules: a. A central atom with four identical bonded atoms and no lone pairs. b. A central atom with four bonded atoms that are not identical and no lone pairs.
Problem 112
Predict the shape and polarity of each of the following molecules: a. \(\mathrm{H}_{2} \mathrm{O}\) b. \(\mathrm{CF}_{4}\)
Problem 113
Indicate the major type of attractive force \(-(1)\) ionic bonds, (2) dipole-dipole attractions, (3) hydrogen bonds, (4) dispersion forces-that occurs between particles of the following substances: a. \(\mathrm{NH}_{3}\) b. HI c. \(\mathrm{Br}_{2}\) d. \(\mathrm{Cs}_{2} \mathrm{O}\)
Problem 114
Indicate the major type of attractive force-(1) ionic bonds, (2) dipole-dipole attractions, (3) hydrogen bonds, (4) dispersion forces-that occurs between particles of the following substances: a. \(\mathrm{CHCl}_{3}\) b. \(\mathrm{H}_{2} \mathrm{O}\) c. \(\mathrm{LiCl}\) d. \(\mathrm{Cl}_{2}\)
Problem 116
$$ \begin{aligned} &\text { 4.116 Complete the following table for atoms or ions: }\\\ &\begin{array}{|l|l|l|l|} \hline \begin{array}{l} \text { Atom } \\ \text { or Ion } \end{array} & \begin{array}{l} \text { Number } \\ \text { of Protons } \end{array} & \begin{array}{l} \text { Number } \\ \text { of Electrons } \end{array} & \begin{array}{l} \text { Electrons } \\ \text { Lost/Gained } \end{array} \\ \hline & 30 p^{+} & & 2 e^{-} \text {lost } \\ \hline & 36 p^{+} & 36 e^{-} & \\ \hline & 16 p^{+} & & 2 e^{-} \text {gained } \\ \hline & & 46 e^{-} & 4 e^{-} \text {lost } \\ \hline \end{array} \end{aligned} $$
Problem 117
Identify the group number in the periodic table of \(\mathrm{X}\), a representative element, in each of the following ionic compounds: a. \(\mathrm{XCl}_{3}\) b. \(\mathrm{Al}_{2} \mathrm{X}_{3}\) c. \(\mathrm{XCO}_{3}\)
Problem 118
Identify the group number in the periodic table of \(\mathrm{X}\), a representative element, in each of the following ionic compounds: a. \(\mathrm{X}_{2} \mathrm{O}_{3}\) b. \(\mathrm{X}_{2} \mathrm{SO}_{3}\) c. \(\mathrm{Na}_{3} \mathrm{X}\)
Problem 119
Classify each of the following as ionic or covalent, and name each: a. \(\mathrm{Li}_{2} \mathrm{O}\) b. \(\mathrm{Cr}\left(\mathrm{NO}_{3}\right)_{2}\) c. \(\mathrm{Mg}\left(\mathrm{HCO}_{3}\right)_{2}\)
