Chemistry Terms And Definitions Pdf

chemistry terms and definitions pdf

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basic chemistry terms and definitions pdf

This glossary of chemistry terms is a list of terms and definitions relevant to chemistry , including chemical laws, diagrams and formulae, laboratory tools, glassware, and equipment. Chemistry is a physical science concerned with the composition, structure, and properties of matter , as well as the changes it undergoes during chemical reactions ; it features an extensive vocabulary and a significant amount of jargon. Also acid ionization constant or acidity constant. Also actinoids. Also enplethy , chemical amount , or simply amount.

biochemistry terms and definitions pdf

This comprehensive chemistry dictionary or glossary offers definitions for terms which are commonly used in chemistry and chemical engineering. This page contains the chemistry definitions starting with the letter A. Click the letter to go to the page containing glossary terms beginning with that letter. Antonym: adhesive Example: Teflon is an abhesive material used to make frying pans non-stick. Ab initio refers to predictions or calculations which are based entirely on theory as opposed to experimentation. Most abrasives are very hard, brittle, and heat-resistant.

The definition of chemistry—the study of the interactions of matter with other matter and with energy—uses some terms that should also be defined. We start the study of chemistry by defining basic terms. Matter is anything that has mass and takes up space. A book is matter, a computer is matter, food is matter, and dirt in the ground is matter. Sometimes matter may be difficult to identify.


Formula: An expression showing the chemical composition of a compound in terms of the symbols for the atoms of the elements involved; see stoichiometry. C.


Glossary of chemistry terms

Strong acids completely dissociate into ions in aqueous solutions. Weak acids only dissociate partially in aqueous solutions. Relative Atomic Mass is the weighted average of the masses of an element's isotopes relative to one twelth of the mass of a Carbon 12 atom. Bond enthalpy is the amount of energy required to break one mole of a bond in a gaseous molecule.

These and other terms are frequently used in chemistry. Acid rain kills fish, kills trees, and destroys buildings and lakes. Basic concepts of Organic Chemistry.

A to Z Chemistry Dictionary

This alphabetical chemistry dictionary offers definitions and examples of important chemistry and chemical engineering terms. For each term, a brief definition is given. Each link leads to a more comprehensive discussion of the word.

1.1: Basic Definitions

Endothermic reactions feel cold. It is the lowest possible temperature. Biochemistry is closely related to molecular biology, the study of the molecular mechanisms by which genetic information encoded in DNA is able to result in the processes of life. Depending on the exact definition of the terms used, molecular biology can be thought of as a branch of biochemistry, or biochemistry as a tool with which to investigate and study molecular biology.

Chemistry , the science that deals with the properties, composition , and structure of substances defined as elements and compounds , the transformations they undergo, and the energy that is released or absorbed during these processes. Every substance, whether naturally occurring or artificially produced, consists of one or more of the hundred-odd species of atoms that have been identified as elements. Although these atoms, in turn, are composed of more elementary particles, they are the basic building blocks of chemical substances; there is no quantity of oxygen , mercury , or gold , for example, smaller than an atom of that substance. Chemistry, therefore, is concerned not with the subatomic domain but with the properties of atoms and the laws governing their combinations and how the knowledge of these properties can be used to achieve specific purposes. Chemistry is the branch of science that deals with the properties, composition, and structure of elements and compounds , how they can change, and the energy that is released or absorbed when they change. Chemistry is the study of substances—that is, elements and compounds —while biology is the study of living things.

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chemistry, and is equivalent to 1/12 the mass of carbon However, it is also true that the usual definition of a strong electrolyte is one that dissociates.

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