Wht is acid,base,and salts.

http://www.ducksters.com/science/acids_and_bases.php

Acids, bases, and salts are three important types of compounds that are commonly studied in chemistry.

1. Acid: An acid is a chemical compound that donates hydrogen ions (H+) to a solution. Acids typically have a sour taste and can react with certain metals to produce hydrogen gas. They can also turn blue litmus paper red. Examples of common acids include hydrochloric acid, sulfuric acid, and acetic acid (found in vinegar). To understand what makes a compound an acid, you can look for certain characteristics such as a high concentration of hydrogen ions and a low pH value.

2. Base: A base, also known as an alkali, is the opposite of an acid. It is a chemical compound that accepts hydrogen ions (H+) and can donate hydroxide ions (OH-) to a solution. Bases typically have a bitter taste and feel slippery to the touch. They can turn red litmus paper blue. Examples of common bases include sodium hydroxide (lye), calcium hydroxide (slaked lime), and ammonia. Bases are characterized by having a high concentration of hydroxide ions and a high pH value.

3. Salt: A salt is formed by the reaction of an acid and a base. It is a compound composed of a metal cation (positive ion) and an anion (negative ion) other than hydroxide or hydrogen ions. Salts are usually crystalline solids and are often soluble in water. They do not show the properties of either acids or bases. Examples of salts include sodium chloride (table salt), calcium carbonate (found in limestone), and magnesium sulfate (epsom salt). To determine if a compound is a salt, you can check if it is formed from the neutralization reaction between an acid and a base.

Understanding the properties and behavior of acids, bases, and salts is essential in various fields, including chemistry, biology, and medicine.