Chemistry Glossary Terms Starting with the Letter L

Chemistry Glossary and Dictionary

Litmus paper is a type of pH paper that is used to test the acidity of water-based liquids.
Litmus paper is a type of pH paper that is used to test the acidity of water-based liquids. David Gould, Getty Images

This chemistry glossary offers definitions for terms which are commonly used in chemistry and chemical engineering. Here are works that start with the letter L.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

labile complex

lanthanides

lanthanum

lattice energy

lattice point

law

Law of Chemical Equilibrium

Law of Combining Volumes

Law of Conservation of Energy

Law of Conservation of Mass

Law of Constant Composition

Law of Definite Proportions

Law of Multiple Proportions

lawrencium

lead

leaving group - Leaving group refers to an atom or group of atoms removed from the rest of a molecule. When the leaving group is removed, the group takes the electron pair that previously formed the bond at the cleavage point. Leaving group is also known as nucleofuge and commonly abbreviated as LG. Leaving group can also be applied to the removal of atoms from a proton. Leaving groups of this type are conjugate bases of the acid that supplied the proton.

Le Chatelier′s Principle

Leclanche cell

Leidenfrost effect - The Leidenfrost effect is the phenomenon where a liquid produces an insulating vapor that prevents it from boiling when the liquid is in proximity to a surface much hotter than the liquid's boiling point.
Example: A common example of the Leidenfrost effect is the skittering of water across the surface of a very hot pan.

leu - Leu is an abbreviation for the amino acid leucine. Leucine is also abbreviated as L.

levorotatory - Levorotatory refers to a chiral molecule which rotates plane polarized light counterclockwise with respect to the light approaching the viewer. Levorotatory enantiomers are denoted by the prefix L-.

Lewis acid

Lewis acid base reaction

Lewis base

Lewis complex - A Lewis complex is the product of a Lewis acid base reaction. Lewis complexes are formed when a Lewis acid combines with a Lewis base.
Also Known As: Lewis acid/base complex

Lewis structure

ligand

ligand field splitting

light naptha - Light naptha is a type of naptha distilled from 5- to 6-carbon hydrocarbons boiled between 30 °C and 60 °C.

limestone

limiting reactant

lipid

liquefaction

liquid

liter

lithium

litmus paper

London dispersion force

lone pair

lox

lunar caustic

lunar crystals

lutetium

lyase

lye - Lye is a common name for the compound sodium hydroxide (NaOH).
Also Known As: sodium hydroxide, caustic soda

Lyman series

lys

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z