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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.
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What is an ion pair and how does it form in chemical reactions?
An ion pair is a pair of ions, one positively charged and one negatively charged, that are attracted to each other due to their opposite charges. In chemical reactions, ion pairs can form when a molecule loses or gains an electron, creating ions with opposite charges that then attract each other to form a pair.
Which pair of substances might be involved in an oxidation-reduction reaction that would result in the formation of ions?
One possible pair of substances that could be involved in an oxidation-reduction reaction to form ions is magnesium and oxygen. In this reaction, magnesium would undergo oxidation to form Mg2+ ions, while oxygen would undergo reduction to form O2- ions.
What does a base do in a solution?
A base in an aqueous solution will either accept a proton (H+), produce an OH- ion, or be an electron pair donor (Lewis base).
What makes acid an acid?
There are a few ways to define an acid: 1- It increases the hydrogen ion (H+) concentration to a solution 2- It donates a proton 3- It accepts an electron pair to form a covalent bond.
How H2o binds to Cuso4?
In a solution of CuSO4, water molecules will surround Cu2+ ions due to their positive charge through a process called hydration. The water molecules form coordinate covalent bonds with the Cu2+ ions by donating a lone pair of electrons to the copper ion, effectively binding the water molecules to the CuSO4 compound.
How do ionic crystals form?
When positive ions and negative ions are nearby they are attracted and pair up building an Ionic Crystal.
What is an ion pair and how does it form in chemical reactions?
An ion pair is a pair of ions, one positively charged and one negatively charged, that are attracted to each other due to their opposite charges. In chemical reactions, ion pairs can form when a molecule loses or gains an electron, creating ions with opposite charges that then attract each other to form a pair.
What does pyridine act as when it reacts with water to form hydroxide?
Pyridine acts as a base when it reacts with water to form hydroxide ions. The lone pair of electrons on the nitrogen atom in pyridine can accept a proton from water, resulting in the formation of hydroxide ions (OH-) in the solution.
How ionic compound form crystal?
When positive ions and negative ions are nearby they are attracted and pair up building an Ionic Crystal.
What ions does a neutral solution contain and what is the quantity of each?
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.
Which pair of substances might be involved in an oxidation-reduction reaction that would result in the formation of ions?
One possible pair of substances that could be involved in an oxidation-reduction reaction to form ions is magnesium and oxygen. In this reaction, magnesium would undergo oxidation to form Mg2+ ions, while oxygen would undergo reduction to form O2- ions.
Why nh3 is good complexing agent?
NH3 is a good complexing agent because it can donate a lone pair of electrons to form coordinate covalent bonds with transition metal ions, forming stable complex compounds. The Lewis base nature of NH3 allows it to form coordination complexes with metal ions through dative bonding, enhancing their solubility and stability in solution. Additionally, NH3 can undergo ligand exchange reactions to form different coordination geometries, making it versatile in coordinating with various metal ions.
An acid base pair is known as what?
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.
What does a base do in a solution?
A base in an aqueous solution will either accept a proton (H+), produce an OH- ion, or be an electron pair donor (Lewis base).
What makes acid an acid?
There are a few ways to define an acid: 1- It increases the hydrogen ion (H+) concentration to a solution 2- It donates a proton 3- It accepts an electron pair to form a covalent bond.
How H2o binds to Cuso4?
In a solution of CuSO4, water molecules will surround Cu2+ ions due to their positive charge through a process called hydration. The water molecules form coordinate covalent bonds with the Cu2+ ions by donating a lone pair of electrons to the copper ion, effectively binding the water molecules to the CuSO4 compound.
Is H2NNH2 an arrhenius base?
No, H2NNH2 is not an Arrhenius base because it is a weak base known as hydrazine. Arrhenius bases dissociate in water to produce hydroxide ions (OH-), whereas hydrazine does not ionize to form OH- ions but rather accepts protons (H+).
