The correct answer is: Dissociation
The term for this process is "dissociation." When KBr is dissolved in water, the K+ and Br- ions separate from each other and become surrounded by water molecules, forming a solution.
The correct answer is: Dissociation
When NaCl is added to water, it dissociates into Na+ and Cl- ions. These ions are then surrounded by water molecules through a process called hydration. The resulting solution is a conductor of electricity due to the presence of free ions.
An acid is a chemical compound that donates hydrogen ions to a solution. This process increases the concentration of hydrogen ions in the solution, lowering its pH.
The correct answer is: Dissociation
The term for this process is "dissociation." When KBr is dissolved in water, the K+ and Br- ions separate from each other and become surrounded by water molecules, forming a solution.
The correct answer is: Dissociation
This process is called dissociation.
The process by which ions leave a solution and regenerate an ionic solid is called precipitation. It occurs when the concentration of ions in a solution exceeds the solubility limit, causing the excess ions to come together and form a solid precipitate. This can be achieved by adding a precipitating agent or by changing the conditions, such as temperature or pH, to reduce the solubility of the ions.
When a precipitation reaction occurs, ions that do not form the precipitate remain in the solution. These ions are called spectator ions and do not participate in the formation of the solid precipitate. They are still present in the solution, but they do not contribute to the solid formed.
When NaBr dissolves in water, Br ions are pulled into solution by the attraction between the polar water molecules (with their partially negative oxygen atoms) and the positively charged sodium ions in the lattice of NaBr. The water molecules surround the Br ions, breaking the ionic bonds and allowing the ions to move freely in the solution.
When NaCl is added to water, it dissociates into Na+ and Cl- ions. These ions are then surrounded by water molecules through a process called hydration. The resulting solution is a conductor of electricity due to the presence of free ions.
That process is called precipitation.
An increase of acid occurs when there are OH- ions in a solution. The hydroxide ion is a diatomic anion with chemical formula OH. It consists of an oxygen and a hydrogen atom held together by a covalent bond, and carrying a negative electrical charge.
An acid is a chemical compound that donates hydrogen ions to a solution. This process increases the concentration of hydrogen ions in the solution, lowering its pH.
Bases in a solution accept protons (H+ ions), thereby decreasing the concentration of H+ ions in the solution and increasing the concentration of hydroxide ions (OH- ions). This process increases the pH of the solution and makes it more basic.