Question

State differences between acids and bases.​

Answer 1

Answer:

An acid is any chemical compound which when dissolved in water gives a solution with a hydrogen ion activity greater than in pure water. A base is an aqueous substance that can accept hydrogen ions. An acid is an substance which donates a proton. ... A base has a chemical formula with OH at the end of it.

Explanation:

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Answer 2

Acids

An acid is a molecule or substance that has a pH value less than 7.0 when it is present in an aqueous solution.

Acids are termed as compounds that donate ${H}^{+}$(hydrogen ion) to another compound known as base.

As per Arrhenius Concept, an acid elevates the concentration of Hydrogen ions when dissolved in water.

When dissolved in water, acids

• Are Sticky.
• Have a burning sensation.
• Change blue litmus to red color.
• Are sour in taste.
• React with bases for neutralization of their properties.
• Conduct electricity.
• React with active metals to liberate H (Hydrogen).
• Remain colorless when Phenolphthalein is added to the solution.

Bases

As per Arrhenius Concept, a base is a compound that increases the concentration of hydroxide ions ${OH}^{-}$ when dissolved in water.

A base (alkaline) is a molecule or substance that has a pH value higher than 7.0 when present in an aqueous solution.

Bases are the exact chemical opposite of acids.

When dissolved in water, bases

• Are bitter in taste.
• Change red litmus to blue color.
• Are slippery to touch.
• React with acids to neutralize their respective properties.
• Turn pink when Phenolphthalein is added to the solution.