A salt capable of producing an aqueous solution with a pH below 7 is classified as____________?
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Answer: B. Acidic salt
Explanation
An acidic salt is formed by reacting a strong acid with a weak base together. When dissolved in water, the resulting salt undergoes hydrolysis to produce excess hydronium ions. This hydrolysis reaction drives the aqueous solution pH level below the neutral mark of seven. Acid-base neutralization reactions produce ionic salts composed of various cation and anion combinations. Conjugate acids of weak bases are strong enough to donate protons to water solvent molecules. pH scales measure acidity logarithmically, where values below seven indicate acidic conditions.
Agricultural lime is often applied to acidic soils to neutralize pH levels affected by acidic fertilizers. Swimming pool maintenance requires monitoring salt hydrolysis to prevent acidic water corrosion damage. Biological systems utilize bicarbonate and phosphate salt buffers to prevent harmful pH fluctuations. Basic salts are formed from strong bases and weak acids, producing pH levels above seven. Neutral salts are formed from strong acids and strong bases, yielding a neutral pH of seven. Amphoteric salts contain ions capable of acting as either acids or bases depending on conditions.
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