Problem 46
Classify each compound as ionic or molecular. (a) \(\mathrm{PtO}_{2}\) (b) \(\mathrm{CF}_{2} \mathrm{Cl}_{2}\) (c) \(\mathrm{CO}\) (d) \(\mathrm{SO}_{3}\)
Problem 48
Match the substances on the left with the basic units that compose them on the right. Remember that atomic elements are composed of atoms, molecular elements are composed of diatomic molecules, molecular compounds are composed of molecules, and ionic compounds are composed of formula units. \(\begin{array}{ll}\mathrm{NI}_{3} & \text { molecules } \\ \text { copper metal } & \text { single atoms } \\ \mathrm{SrCl}_{2} & \text { diatomic molecules } \\ \text { nitrogen } & \text { formula units }\end{array}\)
Problem 49
What are the basic units single atoms, molecules, or formula units-that compose each substance? (a) \(\mathrm{BaBr}_{2}\) (b) Ne (c) \(\mathrm{I}_{2}\) (d) \(\mathrm{CO}\)
Problem 50
What are the basic units-single atoms, molecules, or formula units - that compose each substance? (a) \(\mathrm{Rb}_{2} \mathrm{O}\) (b) \(\mathrm{N}_{2}\) (c) \(\mathrm{Fe}\left(\mathrm{NO}_{3}\right)_{2}\) (d) \(\mathrm{N}_{2} \mathrm{~F}_{4}\)
Problem 51
Classify each compound as ionic or molecular. If it is ionic, determine whether the metal forms only one type of ion or more than one type of ion. (a) \(\mathrm{KCl}\) (b) \(\mathrm{CBr}_{4}\) (c) \(\mathrm{NO}_{2}\) (d) \(\mathrm{Sn}\left(\mathrm{SO}_{4}\right)_{2}\)
Problem 53
Write a formula for the ionic compound that forms from each pair of elements. (a) sodium and sulfur (b) strontium and oxygen (c) aluminum and sulfur (d) magnesium and chlorine
Problem 54
Write a formula for the ionic compound that forms from each pair of elements. (a) aluminum and oxygen (b) beryllium and iodine (c) calcium and sulfur (d) calcium and iodine
Problem 55
Write a formula for the compound that forms from potassium and (a) acetate (b) chromate (c) phosphate (d) cyanide
Problem 56
Write a formula for the compound that forms from calcium and (a) hydroxide (b) carbonate (c) phosphate (d) hydrogen phosphate
Problem 57
Write formulas for the compounds formed from the element on the left and each of the elements on the right. (a) Li N, O, F (b) \(\mathrm{Ba} \quad \mathrm{N}, \mathrm{O}, \mathrm{F}\) (c) \(\mathrm{Al} \quad \mathrm{N}, \mathrm{O}, \mathrm{F}\)
