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Chapter 2: Problem 11
What is the mass number of an iron atom that has 28 neutrons?
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Identify the following as elements or compounds: \(\mathrm{NH}_{3}, \mathrm{~N}_{2}, \mathrm{~S}_{8}, \mathrm{NO}, \mathrm{CO}, \mathrm{CO}_{2}, \mathrm{H}_{2}, \mathrm{SO}_{2}\)
Give an example of each of the following: (a) a monatomic cation, (b) a monatomic anion, (c) a polyatomic cation, (d) a polyatomic anion.
Write the molecular formula of glycine, an amino acid present in proteins. The color codes are: black (carbon), blue (nitrogen), red (oxygen), and gray (hydrogen).
Fill the blanks in the following table. $$\begin{array}{|c|c|c|c|}\hline \text { Cation } & \text { Anion } & \text { Formula } & \text { Name } \\\\\hline & & & \text { Magnesium bicarbonate } \\\\\hline & & \mathrm{Sr} \mathrm{Cl}_{2} & \\\\\hline \mathrm{Fe}^{3+} & \mathrm{NO}_{2}^{-} & & \\ \hline & & & \text { Manganese(II) chlorate } \\\\\hline & & \mathrm{SnBr}_{4} & \\\\\hline \mathrm{Co}^{2+} & \mathrm{PO}_{4}^{3-} & & \\\\\hline \mathrm{Hg}_{2}^{2+} & \mathrm{I}^{-} & & \\\\\hline & & \mathrm{Cu}_{2} \mathrm{CO}_{3} & \\\\\hline & & & \text { Lithium nitride } \\\\\hline \mathrm{Al}^{3+} & \mathrm{S}^{2-} & & \\\\\hline\end{array}$$
Predict the formula and name of a binary compound formed from these elements: (a) \(\mathrm{Na}\) and \(\mathrm{H},\) (b) \(\mathrm{B}\) and \(\mathrm{O},(\mathrm{c}) \mathrm{Na}\) and \(\mathrm{S},(\mathrm{d}) \mathrm{Al}\) and \(\mathrm{F}\) (e) \(\mathrm{F}\) and \(\mathrm{O},\) (f) \(\mathrm{Sr}\) and \(\mathrm{Cl}\).
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