Explain various chemical formulas, Biology

Assignment Help:

Explain various chemical formulas?

Chemical Formulas

A molecule can be represented in any of three ways: its chemical formula, structural formula, or Lewis diagram. A chemical formula is a type of shorthand which designates the composition of molecules. The formula contains the symbols of the constituent atoms and their ratio in the compound. If more than one atom of the same type is present, the number is indicated by a subscript following the symbol. Occasionally, atoms join covalently to form polyatomic ions, or radicals. These groups are surrounded by parentheses in the chemical formula.

1249_Formulas.png

Structural formulas and Lewis diagrams give information about the arrangement of atoms in the molecule. The sharing of two electrons by two atoms in a covalent bond, is represented by a line drawn between the atoms in a structural diagram, and by two dots denoting the electrons in a Lewis diagram.

1845_example of isomer.png

 Although the chemical composition is given in the formulas, many complicated molecules can have various arrangements of the same atoms. A structural formula is required to describe these different structures, called isomers.

The chemical formula for ionic compounds is written with a superscript designating the charge on each atom or polyatomic particle as follows:

406_sodium chloride.png


Related Discussions:- Explain various chemical formulas

Protein synthesis, Protein Synthesis The central dogma of modern bioche...

Protein Synthesis The central dogma of modern biochemistry is totally based on the coded information holds within deoxyribonucleic acid (DNA). Double stranded DNA is converted

Argument, do you can write argument i will send you the article you want wr...

do you can write argument i will send you the article you want write from with rules please call me at 623-552-8532

Explain the radiographic success of root canal treatment, Explain the Radio...

Explain the Radiographic Success of Root Canal Treatment Elimination or lack of development of an area of rarefaction (= Radiolocency )  for a minimum of I year after treatment

Explain restricted fragment polymorphism, Q. Explain Restricted fragment po...

Q. Explain Restricted fragment polymorphism? This method makes use of a group of enzymes termed restriction enzymes which recognise particular sequence of DNA and act as "molec

What happens when the ovum is fertilized, What happens when the ovum is fer...

What happens when the ovum is fertilized? If the ovum is fertilized, there is no breakdown of endometrium and no menstrual flow. The fertilized ovum travels through uterine tub

Nerves - organisation of nervous system, Nerves - Organisation of Nervous S...

Nerves - Organisation of Nervous System Due to the pattern of distribution of neurons as described above, there are bundles of nerve fibers, called nerves, connecting the cent

Minerals and trace elements, Minerals and Trace Elements Oxygen, carbo...

Minerals and Trace Elements Oxygen, carbon, hydrogen and nitrogen are the most common elements that make up 96% of the total weight of a mammal. The next most abundant element

What is pinocytosis, Pinocytosis: - The  ingestion of dissolved materials  ...

Pinocytosis: - The  ingestion of dissolved materials  by  endocytosis.  The cytoplasmic membrane invaginates and pinches off placing small  droplets of fluid  in  a  pinocytic vesi

Carrier ions like na+ facilitate the absorption of substance, Carrier ions ...

Carrier ions like Na+ facilitate the absorption of substances like: 1. amino acids and glucose 2. glucose and fatty acids 3. fatty acids and glycerol 4. fructose and so

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd