wordswarm.net: free dictionary lookup

NEW: Pecarus, by Lexmilian de Mello,
A Book of Poetry Inspired by Wordswarm.net

Wordswarms From Years Past

13-Letter Words
12-Letter Words
11-Letter Words
10-Letter Words
9-Letter Words
8-Letter Words
7-Letter Words
6-Letter Words
5-Letter Words
4-Letter Words
3-Letter Words

Adjacent Words

chemical bond
chemical chain
chemical change
chemical compound
chemical decomposition reaction
chemical defence
chemical defense
chemical diabetes
chemical dose
chemical element
chemical energy
chemical engineer
chemical engineering
chemical equation
chemical equilibrium
Chemical fuze
chemical group
chemical harmonicon
chemical hazard
chemical horn
chemical hydrology
chemical industry
chemical irritant
Chemical Mace
chemical mechanism
chemical monitoring
chemical notation
chemical operations
chemical peel
chemical phenomenon

Full-text Search for "chemical formula"

chemical formula definitions

WordNet (r) 3.0 (2005)

1: a representation of a substance using symbols for its constituent elements [syn: formula, chemical formula]

Britannica Concise

Expression of the composition or structure of a chemical compound. Formulas for molecules use chemical symbols with subscript numbers to show the number of atoms of each element: O2 for oxygen, O3 for ozone, CH4 for methane, C6H6 for benzene. Parentheses may enclose atoms that act as a group. General formulas show the proportions of atoms in members of a class (e.g., CnH2n + 2 for alkanes). If the substance does not exist as molecules (see ionic bond), empirical formulas show the relative proportions of the constituents (e.g., NaCl for sodium chloride). Structural formulas show bonds (see bonding) between atoms in a molecule as short lines between symbols; they are particularly useful for showing how isomers differ. A projection formula also indicates the three-dimensional arrangement of the atoms (see Fischer projection, stereochemistry).

comments powered by Disqus

Wordswarm.net: Look up a word or phrase


wordswarm.net: free dictionary lookup