Acidic
Acidic
Acidic (pronounced: /əˈsɪdɪk/) is a term used in chemistry and biology to describe substances that have a pH less than 7. The term originates from the Latin word acidus, meaning sour or sharp.
Definition
An Acid is a substance that donates protons (in the form of a H+ ion) or accepts a pair of electrons. The acidity of a substance is measured using the pH scale. Substances with a pH less than 7 are considered acidic.
Properties
Acidic substances have certain common properties. They taste sour, can turn blue litmus paper red, and react with bases to form salts and water, a process known as neutralization.
Examples
Examples of acidic substances include Vinegar, Citric acid, and Hydrochloric acid. These substances are commonly found in various foods and household products.
Related Terms
- Alkaline: The opposite of acidic, substances with a pH greater than 7.
- pH: A measure of the acidity or alkalinity of a solution.
- Base: Substances that can accept protons or donate a pair of electrons.
- Neutralization: The reaction between an acid and a base to form a salt and water.
- Salt: The product of a neutralization reaction.
External links
- Medical encyclopedia article on Acidic
- Wikipedia's article - Acidic
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