Chapter 22: Problem 69
Give the chemical formula for (a) hydrocyanic acid, (b) nickel tetracarbonyl, (c) barium bicarbonate, (d) calcium acetylide.
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Why are there so few compounds of the noble gases?
Explain why \(\mathrm{SO}_{2}\) can be used as a reducing agent but \(\mathrm{SO}_{3}\) cannot.
Complete and balance the following equations: (a) \(\mathrm{MnO}_{4}^{-}(a q)+\mathrm{H}_{2} \mathrm{O}_{2}(a q)+\mathrm{H}^{+}(a q) \longrightarrow\) (b) \(\mathrm{Fe}^{2+}(a q)+\mathrm{H}_{2} \mathrm{O}_{2}(a q) \longrightarrow\) (c) \(\mathrm{I}^{-}(a q)+\mathrm{H}_{2} \mathrm{O}_{2}(a q)+\mathrm{H}^{+}(a q) \longrightarrow\) (d) \(\mathrm{Cu}(\mathrm{s})+\mathrm{H}_{2} \mathrm{O}_{2}(a q)+\mathrm{H}^{+}(a q) \longrightarrow\) (e) \(\mathrm{I}^{-}(a q)+\mathrm{O}_{3}(\mathrm{~g}) \longrightarrow \mathrm{I}_{2}(\mathrm{~s})+\mathrm{O}_{2}(\mathrm{~g})+\mathrm{OH}^{-}(a q)\)
Write a balanced equation for the reaction of each of the following compounds with water: (a) \(\mathrm{SO}_{2}(g)\), (b) \(\mathrm{Cl}_{2} \mathrm{O}_{7}(g)\), (c) \(\mathrm{Na}_{2} \mathrm{O}_{2}(s)\) (d) \(\mathrm{BaC}_{2}(\mathrm{~s})\), (e) \(\mathrm{RbO}_{2}(\mathrm{~s})\), (f) \(\mathrm{Mg}_{3} \mathrm{~N}_{2}(s)\) (g) \(\mathrm{NaH}(s)\).
Explain the following observations: (a) The highest fluoride compound formed by nitrogen is \(\mathrm{NF}_{y}\) whereas phosphorus readily forms \(\mathrm{PF}_{5}\). (b) Although \(\mathrm{CO}\) is a well-known compound, SiO does not exist under ordinary conditions. (c) \(\mathrm{AsH}_{3}\) is a stronger reducing agent than \(\mathrm{NH}_{3}\).
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