Galvanic Cells: 4. Calculate the standard cell potential at \( 25^{\circ} \mathrm{C} \) for the following cell reaction. \[ N i(s)+M g^{2+}(a q) \rightarrow N i^{2+}(a q)+M g(s) \]

\( \_ CaO + \ldots HCl \rightarrow CaCl _ { 2 } + \ldots H _ { 2 } O \)

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

Draw the partial (valence-level) orbital diagram and write the symbol, group number, and period number of the element with the following configuration: \( \qquad \mathrm{Ne}] 3 s^{2} 3 p^{5} \) Part 1 of 4

Quanti grammi di soluto bisogna aggiungere a \( 50,0 \mathrm{~g} \) di una soluzione al \( 10,0 \% \mathrm{~m} / \mathrm{m} \) perché la sua concentrazione raddoppi?

Which of the following is the function of the atomiser in the emission system of Atomic Absorption Spectroscopy? To split the beam into two To break the steady light into pulsating light To break large mass of liquid into small drops To reduce the sample into atomic state