Answer:
Number of delocalized electrons
Explanation:
Magnesium has more delocalized electrons compared to sodium and this accounts for the higher melting point.
- When magnesium atoms comes together to form a metallic bonds, they have more network of delocalized electrons.
- There is more pull for the localized electrons due to the nuclear charge on the nucleus.
- This strong intermolecular metallic bond increases the melting point of magnesium.
Water that contains large amounts of disolved salts
Answer:
0.895V
Explanation:
The emf of an electrochemical cell is obtained from the Nernst equation as shown in the images attached. The emf of an electrochemical cell is read from voltmeter in the circuit. The Nernst equation is used to obtain the emf of cell when it is not operated under standard conditions. That is the concentration of solutions is not 1M, temperature is not 25oc and pressure (for gases is not 1ATM)
Answer:
The colour of the solution will change from blue to transparent and copper will be observed as a layer on the Aluminium piece.
Explanation:
The colour of the solution will change from blue to transparent and copper will be observed as a layer on the Aluminium piece.