It increases the concentration of OH- in solution. (apex)
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When acid dissolves in water, it typically dissociates into ions. For example, hydrochloric acid (HCl) will dissociate into H+ and Cl- ions in water. This process of dissociation increases the concentration of hydrogen ions in the solution, leading to a decrease in pH.
Carbonic acid is produced when carbon dioxide dissolves in water. This can then dissociate into bicarbonate and hydrogen ions in the solution.
When acetic acid (CH3COOH) dissolves in water, it ionizes into acetate ions (CH3COO-) and hydrogen ions (H+). This process is reversible and establishes an equilibrium between dissolved and undissolved acetic acid molecules. The solution becomes acidic due to the presence of the hydrogen ions.
When SO2 dissolves in rainwater, it forms sulfuric acid (H2SO4) due to reaction with water. This leads to acid rain, which can harm the environment by causing damage to plant life, aquatic ecosystems, and infrastructure. Acid rain can also contribute to the degradation of buildings and statues made of limestone or marble.
Hydrochloric acid is the substance that dissolves calcium carbonate.
Hydrochloric acid is a commonly known poisonous substance that dissolves in water to create an acidic solution.