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If you are referring to acids and bases it mainly has to do with something called and acid-base equilibrium.

When an acid dissociates in water the reaction is something like this (using HCl as an example)

HCl + H2O --> Cl- + H3O+

The hydrogen ion (H+) is pulled out of the HCl molecule and bonds to a lone pair of electrons to form a hydronium ion (H3O+) . The new bond between the hydrogen and oxygen is essentially the same as a normal covalent bond, only the oxygen contributes both electrons rather than each atom contributing one.

When a weak covalent base (such as ammonia, NH3) dissociates in water a somewhat similar reaction occurs.

NH3 + H2O --> NH4+ + OH-

In this case it is the water molecule that donates a hydrogen ion, which bonds to the lone pair of electrons on the ammonia molecule to turn it into an ammonium ion (NH4+).

In reactions such as these the acid is the substance that gives up a hydrogen ion (proton donor) and the base is the one that gains a hydrogen ion (proton acceptor).

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Q: How can a compound joined by a covalent bond form ions when it dissolves in water?
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Why doesn't the covalent compound that dissolves in water have an electrical current?

cs h2o


Are covalent compounds soluble?

Solubility of a substance in water depends on the type of interaction predominates in the compound and the solvent.The solubility of any compound follows the principle "like dissolves like".So if a covalent molecular compound is polar then it dissolves in a polar solvent and if it is non polar or hydrophobic then it dissolves in a nonpolar solvent


Are covalent molecular compounds soluble?

Solubility of a substance in water depends on the type of interaction predominates in the compound and the solvent.The solubility of any compound follows the principle "like dissolves like".So if a covalent molecular compound is polar then it dissolves in a polar solvent and if it is non polar or hydrophobic then it dissolves in a nonpolar solvent


Does salt disslove in water?

Yes, salt is an ionic compound and water is a polar covalent solvent.


What sort of compound is sodium chloride to dissolves in water polar nonpoplar covalent or vacuous?

Sodium chloride is polar.


Is water an example of covalent compound?

Water is a covalent compound.


How can a compound joined by a covalent bond from ions when it dissolves in water?

Covalent compounds have only a slight tendency to ionize, but remember, water itself does ionize into H+ and OH- (with an ionization constant of 10-14). Any molecule will have some tendency, however slight, to come apart under the stress of normal thermal vibration.


An unknown compound dissolves in water but the solution does not conduct electricity?

If a compound dissolves into water and allows for the conductance of electrical current its said to be ionic and an electrolyte. Sodium chloride (NaCl) or table salt exhibits this property. Sugar is a compound that will dissolve in water but not conduct current. Sugar is not an electrolyte or ionic; rather a covalent molecule.


If you sprinkle salt into a cup of water what happens to the salt before it dissolves and Why?

The salt breaks down into ions because the covalent water compound is bound together tightly.


What If you sprinkle salt into a cup of water what happens to the salt before it dissolves and why?

The salt breaks down into ions because the covalent water compound is bound together tightly.


And one covalent compound found in the body?

Water is a covalent compound.


Is ocean water an ionic or a covalent compound?

Ocean water is a mixture, not a compound. Water itself is a covalent compound. But ocean water also has some ionic compounds and a few other covalent compound mixed with it.