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What is a base in chemistry kids definition?
A base is a substance that can accept a hydrogen ion (H+) from another substance. A chemical can accept a proton if it has a negative charge, or if the molecule has an electronegative atom like oxygen, nitrogen, or chlorine that is rich in electrons. Like acids, some bases are strong and others are weak.
What is the scientific definition of an acid?
What is an acid, as defined in chemistry? An acid is any substance that in water solution tastes sour, changes blue litmus paper to red, reacts with some metals to liberate hydrogen, reacts with bases to form salts, and promotes chemical reactions (acid catalysis).
What is base in chemistry short answer?
A base is a compound in which each atom of metal is combined with one or several hydroxyl groups.
What does it mean to be on a base?
Definition of on base : occupying one of the bases (first, second, or third) during a game There’s a runner on base.
What is the definition of base in math?
The word “base” in mathematics is used to refer to a particular mathematical object that is used as a building block. The most common uses are the related concepts of the number system whose digits are used to represent numbers and the number system in which logarithms are defined.
How do you identify a base in chemistry?
To determine whether a substance is an acid or a base, count the hydrogens on each substance before and after the reaction. If the number of hydrogens has decreased that substance is the acid (donates hydrogen ions). If the number of hydrogens has increased that substance is the base (accepts hydrogen ions).
What is acid and base simple definition?
An acid is a substance that donates protons (in the Brønsted-Lowry definition) or accepts a pair of valence electrons to form a bond (in the Lewis definition). A base is a substance that can accept protons or donate a pair of valence electrons to form a bond. Bases can be thought of as the chemical opposite of acids.
What is an example of a base in science?
Examples of bases are the hydroxides of the alkali metals and the alkaline earth metals ( NaOH , Ca(OH)2, etc., see alkali hydroxide and alkaline earth hydroxide). These particular substances produce hydroxide ions (OH−) in aqueous solutions, and are thus classified as Arrhenius bases.
What definition best describes a base?
A base is a molecule or ion able to accept a hydrogen ion from an acid . Acidic substances are usually identified by their sour taste. An acid is basically a molecule which can donate an H+ ion and can remain energetically favourable after a loss of H+.
What is base of Science?
A base is a substance that reacts with an acid in an acid-base reaction . The mechanism through which a base works has been argued throughout history. Generally, a base either accepts a proton, releases a hydroxide anion when dissolved in water, or donates an electron. Examples of bases include hydroxides and soap.
What are some examples of bases?
Some common examples of acids are hydrosulfuric acid, hydrobromic acid, hydrochloric acid, hydroiodic and hydrofluoric acid, while some common bases are calcium hydroxide, sodium hydroxide, barium hydroxide, ammonium hydroxide, magnesium hydroxide and potassium hydroxide. The acidity or basicity of a substance is measured on the pH scale.