Respuesta :
The formation of an aqueous LiBr solution occurs according to the following reaction: [tex]\boxed{{\text{LiBr}}\left( s \right)+{{\text{H}}_{\text{2}}}{\text{O}}\left( l \right)\to {\text{L}}{{\text{i}}^ + }\left({aq}\right)+{\text{B}}{{\text{r}}^ - }\left({aq}\right)}[/tex]
Further Explanation:
Chemical bond:
The attraction between atoms, molecules or ions that is responsible for the formation of chemical compounds is known as a chemical bond. It is formed either due to electrostatic forces or by the sharing of electrons. There are many strong bonds such as ionic bonds, covalent bonds, and metallic bonds while some weak bonds like dipole-dipole interactions, London dispersion forces, and hydrogen bonding also exist.
Ionic compound:
As the name suggests, these compounds have ions as their constituent particles. Out of two bonded atoms, one forms cation by the loss of electrons while other become anion by the gain of electrons.
Properties of ionic compounds:
1. Hard solids
2. High melting and boiling points.
3. Good conductors of heat and electricity.
4. High enthalpy of fusion.
LiBr is an ionic compound that is composed of [tex]{\text{L}}{{\text{i}}^ + }[/tex] and [tex]{\text{B}}{{\text{r}}^ - }[/tex] ions. Water is a polar molecule. When LiBr is dissolved in water, it dissociates into its respective ions. [tex]{\text{L}}{{\text{i}}^ + }[/tex] ions get surrounded by [tex]{\text{O}}{{\text{H}}^ - }[/tex] ions of water and [tex]{\text{B}}{{\text{r}}^ - }[/tex] ions are surrounded by [tex]{{\text{H}}^ + }[/tex] ions of water. So solid LiBr is converted to its aqueous solution when dissolved in water.
The reaction occurs as follows:
[tex]{\text{LiBr}}\left( s \right)+{{\text{H}}_{\text{2}}}{\text{O}}\left( l \right)\to{\text{L}}{{\text{i}}^ + }\left({aq}\right)+{\text{B}}{{\text{r}}^ - }\left({aq}\right)[/tex]
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Answer details:
Grade: High School
Subject: Chemistry
Chapter: Ionic and covalent compounds
Keywords: LiBr, Li+, Br-, H2O, water, polar, ionic compound, aqueous solution, ions, cation, anion, chemical bond, loss of electrons, gain of electrons.
Aqueous LiBr is formed when water interacts with the crystal of LiBr.
Ionic substances are able to dissolve in water. Many ionic compounds are soluble in water. Remember that in chemistry, like dissolve like. The dissolution of one substance in another owes to some kind of intermolecular interaction between the two substances.
Water is a polar molecule, this dipole present in water is of great importance in the formation of LiBr solution. The negative end of the dipole in water become attracted to the positive lithium ion while the positive end of the dipole become attracted to the bromide ion. The solute - solvent interaction gradually replaces solute - solute interaction and the LiBr crystal dissolves to form the aqueous LiBr solution.
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