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

Elements of a gar model of risk assessment, Question 1: (a) Enumerate ...

Question 1: (a) Enumerate the five safety rules that you must observe at all times during boarding (b) Show the six elements of a GAR model of risk assessment. (c) What

#fatty acid biosynthesistitle.., Ask quesdifference between prokaryotic and...

Ask quesdifference between prokaryotic and eukaryotic fatty acid synthesistion #Minimum 100 words accepted#

Environmental accidents can be of various kinds, Question 1 What are th...

Question 1 What are the sources of water pollution? List some measures that can help overcome the problem of water pollution Question 2 Environmental accidents can b

For miscible solid and liquid wastes-chemical wastes, For water soluble/mis...

For water soluble/miscible solid and liquid wastes The familiar method of mopping the waste with plenty of water and running the same into the drainage could be done for miscib

Psychology, Which theory focuses on how people are different than animals? ...

Which theory focuses on how people are different than animals? Functionalism Eclecticism Humanism Behaviorism

Explain the geoid and the surface of the earth, What is the difference amo...

What is the difference among the geoid and the surface of the earth? The geoid is an visualize surface that equal with the average (mean) sea level around the world. Thus, i

What is the earth made of, What is the earth made of? The overall compo...

What is the earth made of? The overall composition of the Earth, in terms of elemental composition is as follows:   Iron 34.6% Oxygen 29.5% Magnesium 12.7% Silic

Nutrients, which nutrient contains carbon, hydrogen, oxygen, nitrogen and s...

which nutrient contains carbon, hydrogen, oxygen, nitrogen and sometimes sulphur and phosphorus?

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