The bond between Potassium and Bromide is considered iconic, Because of how they lose electrons and become ions when they bond together.
Answer:
1. a)
2. a)
3. b)
4. d)
Explanation:
The disposal method is how we throw away the wastes. In a chemical lab, the correct disposal method guarantees the security of the environment and the humans and animals that may be in contact with the materials.
So:
1. Excess chemical: Because it can be toxic, it may be disposed of in the appropriate waste container, which will depend on the characteristics of the material;
2. Reaction mixture: As the excess chemical, it can be toxic, so it must be disposed of at an appropriate waste container;
3. Used filter paper: Generally, the solids in the filter paper is not toxic, so it can be thrown away in the trash can;
4. Cracked or chipped beaker: Because the beaker is made of glass, it can cut when broken, so it must go to a broken glass box, that will protect the people that will deal with it.
The second ionization energy of Mg is larger than the first because it always takes more energy to remove an electron from a positively charged ion than from a neutral atom. The third ionization energy of magnesium is enormous, however, because the Mg2+ ion has a filled-shell electron configuration.
Answer:
Kf = [[Ag(NH₃)₂]⁺] / [Ag⁺] [NH₃]²
Last step: [Ag(NH₃)]⁺(aq) + NH₃(aq) ⇄ [Ag(NH₃)₂]⁺(aq)
Explanation:
When the Ag⁺ ion is in presence of ammonia molecules in an aqueous solution, the dihydrated complex is formed, following the equilibriums:
Ag⁺(aq) + NH₃(aq) ⇄ [Ag(NH₃)]⁺(aq) K₁
<em>[Ag(NH₃)]⁺(aq) + NH₃(aq) ⇄ [Ag(NH₃)₂]⁺(aq) </em> K₂ → Last step.
And the global reaction:
Ag⁺(aq) + 2 NH₃(aq) ⇄ [Ag(NH₃)₂]⁺(aq)
Being Kf is defined as:
<em>Kf = [[Ag(NH₃)₂]⁺] / [Ag⁺] [NH₃]²</em>
