It is a matter of lattice energy vs. heat of solution. The lattice energy is the energy change associated with the ions in the gas phase forming a solid (crystalline) lattice. It is typically an exothermic process, liberating energy. The heat of solution is the energy change associated with the ions being dissolved by solvent, and can be exothermic or endothermic. If the heat of solution is more exothermic than the lattice energy, than it is energetically favorable for the ionic compound to be solvated. If the lattice energy is more exothermic, than solvation will not occur.
Because the solid is the portion that is not dissolving in the solution.
When positive ions and negative ions are nearby they are attracted and pair up building an Ionic Crystal.
Acid, when referring to the science term are proton donors that yield hydronium ions in a water solution, or electron-pair acceptors that combine with electron-pair donors or bases.
Yes, ammonia is an electron pair donor and a Lewis base.
Ammonia is alkaline because it contains a lone pair of electrons that can accept a proton (H+), forming ammonium ions. This ability to accept ions contributes to ammonia's alkalinity by increasing the concentration of hydroxide ions (OH-) in a solution, which results in a higher pH.
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When positive ions and negative ions are nearby they are attracted and pair up building an Ionic Crystal.
A neutral solution can contain ions of hydrogen, hydroxide, and the cation and anion of any neutral salt. There are equal numbers of hydrogen and hydroxide ions, and also an equal (but usually different) number of the other pair of ions.
When positive ions and negative ions are nearby they are attracted and pair up building an Ionic Crystal.
When positive ions and negative ions are nearby they are attracted and pair up building an Ionic Crystal.
Acid, when referring to the science term are proton donors that yield hydronium ions in a water solution, or electron-pair acceptors that combine with electron-pair donors or bases.
When a acid/base pair with a common anion (salt ion) is meant, then it is called a conjugated pair. When both of them are in the same solution in about equal amounts then they form a buffer solution, so they also can be named as buffering pair.
Yes, ammonia is an electron pair donor and a Lewis base.
Pair or pairs is the plural form of pair. Both are acceptable.
Copper sulfate solution provides cupric ions that react with the peptide bonds present in the protein molecule. The test is called as biuret test, as it was originally given by biuret compound.( when urea is heated it forms biuret). The reaction is due to the formation of complex between the cupric ions and lone pair of electrons present on the Nitrogen and Oxygen atoms of peptide bond.
When an acid and a base react, they undergo a chemical reaction known as neutralization. Hydronium ions from the acid combine with hydroxide ions from the base to form water and a salt. This reaction typically results in the formation of water and a salt, while the acidity and basicity of the reactants are neutralized.
Substitute the values of the ordered pair into the relation. If the equation is valid then the ordered pair is a solution, and if not then it is not.
Always. Every ordered pair is the solution to infinitely many equations.