Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
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.
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.
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:
Hormon e . The chief cells of the parathyroids secrete a hormone called parathyroid hormone (PTH) or parathormone or also called Collip's hormone after the name of its discove
Define the term - Stimulus Stimulus and response characteristics of the tests themselves, as well as of the test instructions, become exceedingly important considerations. In g
Explain Back pain, arthritis and gout - Effect of Obesity? Abdominal obesity increases the risk of back pain because of the extra load on the spinal column. This, in turn, red
After the food intake is over, the food gets digested, assimilated and finally egested through the kidneys and anus. The urinary system: • Filters waste materials from the blood
STOMACH It is wide, J-shaped, placed obliquely on left side in upper abdominal cavity so left kidney is slightly down ward. It is 30 cm, long and 15 cm. wide. It has g
Glycosylation: The covalent addition of the sugar moities to N or O atoms present in the side chains of various amino acids of certain proteins, usually occuring within the Golgi
What is an accommodation? Accommodation is the ability of the eye to focus on an object situated at variable distances from the eye. Like a camera, even the eye requires to cha
Define Classification of Carbohydrates? Carbohydrates are defined as polyhydroxy aldehydes or ketones or substances that produce such compounds when hydrolyzed. Carbohydrates a
what is the scientific name of ameoba
Q. Write the meaning of insulin? Insulin is a hormone. And like many hormones, insulin is a protein. Insulin is secreted by groups of cells within the pancreas called islet cel
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd