Problem 47
Write the formula of each of the following: a. oxygen difluoride b. boron trichloride c. dinitrogen trioxide d. sulfur hexafluoride
Problem 48
Write the formula of each of the following: a. sulfur dibromide b. carbon disulfide c. tetraphosphorus hexoxide d. dinitrogen pentoxide
Problem 49
Name each of the following ionic or covalent compounds: a. \(\mathrm{Al}_{2}\left(\mathrm{SO}_{4}\right)_{3}\) antiperspirant b. \(\mathrm{CaCO}_{3}\) antacid c. \(\mathrm{N}_{2} \mathrm{O}^{\text {" }}\) laughing gas," inhaled anesthetic d. \(\mathrm{Na}_{3} \mathrm{PO}_{4}\) cathartic e. \(\left(\mathrm{NH}_{4}\right)_{2} \mathrm{SO}_{4}\) fertilizer f. \(\mathrm{Fe}_{2} \mathrm{O}_{3}\) pigment
Problem 50
Name each of the following ionic or covalent compounds: a. \(\mathrm{N}_{2}\) Earth's atmosphere b. \(\mathrm{Mg}_{3}\left(\mathrm{PO}_{4}\right)_{2}\) antacid c. \(\mathrm{FeSO}_{4}\) iron supplement in vitamins d. \(\mathrm{N}_{2} \mathrm{O}_{4}\) rocket fuel e. \(\mathrm{Cu}_{2} \mathrm{O}\) fungicide f. \(\mathrm{NI}_{3}\) contact explosive
Problem 51
Describe the trend in electronegativity going from left to right across a period.
Problem 52
Describe the trend in electronegativity going down a group.
Problem 53
Using the periodic table, arrange the atoms in each set in order of increasing electronegativity. a. \(\mathrm{Li}, \mathrm{Na}, \mathrm{K}\) b. \(\mathrm{Na}, \mathrm{Cl}, \mathrm{P}\) c. Se, \(\mathrm{Ca}, \mathrm{O}\)
Problem 54
Using the periodic table, arrange the atoms in each set in order of increasing electronegativity. a. \(\mathrm{Cl}, \mathrm{F}, \mathrm{Br}\) b. \(\mathrm{B}, \mathrm{O}, \mathrm{N}\) c. \(\mathrm{Mg}, \mathrm{F}, \mathrm{S}\)
Problem 55
Predict whether each of the following bonds is ionic, polar covalent, or nonpolar covalent: a. \(\mathrm{Si}-\mathrm{Br}\) b. \(\mathrm{Li}-\mathrm{F}\) c. \(\mathrm{Br}-\mathrm{F}\) d. \(I-I\) e. \(\mathrm{N}-\mathrm{P}\) f. \(\mathrm{C}-\mathrm{O}\)
Problem 56
Predict whether each of the following bonds is ionic, polar covalent, or nonpolar covalent: a. \(\mathrm{Si}-\mathrm{O}\) b. \(\mathrm{K}-\mathrm{Cl}\) c. \(\mathrm{S}-\mathrm{F}\) d. \(\mathrm{P}-\mathrm{Br}\) e. \(\mathrm{Li}-\mathrm{O}\) f. \(\mathrm{N}-\mathrm{S}\)
