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

State about the active soil formers, Active Factors or Active Soil Formers ...

Active Factors or Active Soil Formers        It has been recognized for many years that climate  is one of the major state factors controlling soil formation. Soil climate regi

Personal safety hygiene, Personal safety : You would recall that there are...

Personal safety : You would recall that there are mainly three routes through which the harmful substances can enter the human body. These are, direct contact followed by penetrat

Explain what is infective endocaditis, Explain what is INFECTIVE ENDOCADITI...

Explain what is INFECTIVE ENDOCADITIS ? Infective endocarditis could occur on-native valve - native valve endocarditis (NVE) or on a prosthetic valve (Prosthetic Valve Endocard

Objectives for stock verification and maintenance , Objectives : After com...

Objectives : After completing this exercise you should be able to check the stock register, 1. verify the physical presence of articles present in the lab as per the stock regi

Explain residual volume and functional residual capacity, Explain Residual ...

Explain Residual Volume and Functional Residual Capacity Residual Volume (RV): It is the volume of air that remains in the lungs after maximal expiration. The average volume

Solar system, solar system At night you can see very many stars in the...

solar system At night you can see very many stars in the sky. But during the day, only one star is .visible, and that is  the Sun. This is not because there is anything extrao

Sedimentary rock, would sandstone or quartzite break easier?

would sandstone or quartzite break easier?

Atmosphere, Atmosphere: Atmosphere is an envelope of the most useful ga...

Atmosphere: Atmosphere is an envelope of the most useful gases that cover the planet earth. It makes our planet unique and enables life to prosper. If  the earth did not have a

Explain monocytes - types of white blood cells, Explain Monocytes - Types o...

Explain Monocytes - Types of White Blood Cells They are motile and occasionally show phagocytic activity. They form only 5% of leukocytes, capable of providing more phagocytic

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