What is a chemical formula, Science

Assignment Help:

What is a chemical formula?

A chemical formula is a way of representing molecules without drawing them. The chemical formula shows the ratio of atoms that form any given molecule. Covalent and ionic compounds can be represented as chemical formulas. The following are the guidelines to writing and interpreting chemical formulas, including some examples of common ionic compounds and their formulas.

1. Always use the symbols from the periodic table; for example: "Mg".

2. The subscript numbers on each element represent the relative numbers of particles of each type in the molecule. These numbers represent the ratio of atoms within a molecule; for example: MgCl2 has one magnesium atom (Mg) for every two chlorine atoms (Cl2).
3. If the element in a molecule is a metal, its symbol goes first and on the left; for example: NaCl, where Na (sodium) is the metal, and chlorine (Cl) is the nonmetal.

Here are some common ionic compounds found on Earth: NaCl, MgCl2, HCl, NaH, NaF, LiF, CaCl2. There are thousands more.


Related Discussions:- What is a chemical formula

Determine about the textural class, Determine about the Textural class ...

Determine about the Textural class Textural class names form a graduated sequence from soils that are coarse in texture and easy to handle to the clay soils which are very fine

Determine the crop factors of fertilizers, Determine the Crop factors of fe...

Determine the Crop factors of fertilizers Crop responses to fertilizers vary with the nature as well as the variety of the crop which in turn is related to the cation exchange

Explain maximum tubular secretory capacity - urine formation, Explain Maxim...

Explain Maximum Tubular Secretory Capacity The maximum rate at which tubules can transport a substance from the blood vessel to the lumen or from the lumen to the blood vessel

Ethical issues concerning use of animals for experimentation, Ethical issue...

Ethical issues concerning use of animals for experimentation and educational purposes (i) Animals procured, handled and looked after according to the regulatory principles laid

First aid treatment of localized injuries, FIRST AID TREATMENT OF LOCALIZED...

FIRST AID TREATMENT OF LOCALIZED INJURIES : So far, we have seen main life-saving functions of first aid. Let us discuss the task of controlling some other injuries so that they d

STRUCTURE OF LEAF, #2 DESCRIBE THE APPEARANCE OF THE STOMATE AND THE GUARD ...

#2 DESCRIBE THE APPEARANCE OF THE STOMATE AND THE GUARD CELLS.

Classfication of vitamins, Classification  of Vitamins Vitamins  widel...

Classification  of Vitamins Vitamins  widely  vary from each  other  from  tlie  structural point  of  view. Conventionally, they  are  classified on  the  basis  of  their so

Nursing responsibilities, what are the different types ofnursing responsibi...

what are the different types ofnursing responsibilities in lab test

Temperature regulation - physiology of growth & development, Explain Temper...

Explain Temperature Regulation - Physiology of Growth and Development Surface area of the infant per unit weight is larger than the adult; hence infant loses/gains heat from th

Fire barriers precautions for fire prevention, Fire Barriers : When a fire...

Fire Barriers : When a fire starts in a building it spreads quickly by: a) Radiation - Intense heat radiates to neighbouring surfaces which are rapidly heated to ignition poi

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