15. A temperatura ambiente y presión atmosférica, la variación de entalpía en la combustión de la glucosa \( \left(\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6}\right) \) es: \( \Delta \mathrm{H}=-2800 \mathrm{~kJ} / \mathrm{mol} \). Calcula qué calor se desprende si se quema un gramo de glucosa a volumen constante.

\( - Mg ( OH ) _ { 2 } + \ldots HCl \rightarrow MgCl _ { 2 } + \ldots H _ { 2 } O \)

Question 1 Releasing agents are used in atomic emission spectroscopy to prevent O Cationic interference O Anionic interference Ooth anionic and cationic O Physical interference

A metal is considered reactive if it easily loses electrons to achieve a stable octet. Would you prefer metal that readily loses electrons? How is this related to the metal's ionization energy? Would it be better for the metal to have high or low ionization energy?

Which of the following is an example of anionic interference in atomic emission spectroscopy? O Interference of high concentration of sodium ions in assay calcium ions. Interference by formation of less volatile salt with sulphat by calcium. Decreased drop size of the analyte solution by alcohols.

28. \( \mathrm{HgO} \rightarrow \mathrm{Hg}+\mathrm{O}_{2} \)