Determine whether an element is chemically reactive given only its electron configuration Explain how atoms of elements in Group 2 of the periodic table achieve a stable octet. "

Concentrated HCl is 12.0 M . Determine the volume in mL of the concentrated solution required to produce 5500 mL of 0.250 M HCl .

What mass in grams of \( \mathrm{NaHCO}_{3} \) is required to make 59.3 mL of 2.68 M solution?

If the \( \left[\mathrm{H}_{3} \mathrm{O}^{+}\right] \)is less than \( \left[\mathrm{OH}^{-}\right] \)in aqueous solution, then the solution is said to be

magnesio metálico se puede obtener por electrolisis de MgClz fundido, ¿Qué masa magnesio se forma al hacer pasar una corriente de 5.25 A , a través de \( \mathrm{MgCl}_{2} \) fundido rante 2.5 dias de manera continua? Ecuación del proceso

\begin{tabular}{ll}\hline HCN \\ \hline \( \mathrm{NO}_{2}^{-} \) \\ \hline \hline \( \mathrm{CN}^{-} \) \\ \hline \( \mathrm{HNO}_{2} \) & and acid and base on the reactant side are \( \square \), respectively. \\ \hline\end{tabular}