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What is it called when two identical molecules react to form two charged molecules?
autoionization
What is the only way to change the value of Kw?
The value of Kw, which is the equilibrium constant for the autoionization of water, can be changed by changing the temperature of the water. As temperature increases, the value of Kw also increases because the ionization of water is an endothermic process.
Does salt dissociates into H plus and OH- in solution?
No, salt (such as NaCl) does not dissociate into H+ and OH- ions in solution. Salt dissociates into Na+ and Cl- ions. It is only certain substances, like acids and bases, that can dissociate into H+ and OH- ions in solution.
If the hyrdoxide ion concentartion increases what happens to the hydrogen ion concentration?
As the hydroxide ion concentration increases, the hydrogen ion concentration decreases due to the reaction between the two ions. This relationship is governed by the autoionization of water, where water molecules can act as both acids (donating H+) and bases (accepting H+).
Is OH- present in pure water?
its 7
