What is the direction of the net force on charge B?
The charge on the bottom left will be expelled largely by the charge on the top right, which is a double positive charge. Therefore, the direction of the net force on the charge on the lower left is South West, as shown by B. The correct option is B.
What is the net charge of beryllium?
Table of Common Element Charges
| Number | Element | Charge |
|---|---|---|
| 4 | beryllium | 2+ |
| 5 | boron | 3-, 3+ |
| 6 | carbon | 4+ |
| 7 | nitrogen | 3- |
Is Cu+ stable in water?
Stability in aqueous conditions depends on the hydration energy of the ions when they bond to the water molecules (an exothermic process). The Cu2+ ion has a greater charge density than the Cu+ ion and so forms much stronger bonds releasing more energy. Hence, Cu2+ is more stable than Cu+ in aqueous medium.
Why is cui2 not stable in solution?
Iodide ions are strong reducing agents. Therefore, Copper (II) Iodide reduces to insoluble copper (I) iodide. CuI is not stable, so it doesn’t exist in solution. It isn’t stable because of electrochem and the solubility.
What is the correct formula for copper II iodide?
CuI
Does iodine react with copper?
Copper(II) ions oxidize iodide ions to molecular iodine, and in the process are themselves reduced to copper(I) iodide. The initial mucky brown mixture separates into an off-white precipitate of copper(I) iodide under an iodine solution.
What is meant by copper II?
The Roman numeral II tells us the electric charge, or oxidation state, of the copper ion, which is +2. This means each copper atom loses two electrons to form the ion Cu+2. This means we only need one of each ion to form the neutral compound copper(II) oxide, which is CuO.
Why CuI is white?
Copper(I) Iodide is a white solid due to the fully-filled 3d orbitals that does not give rise to color.