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

Explain the physiology of lactation, Explain the Physiology of Lactation ...

Explain the Physiology of Lactation Lactogenesis is the onset of copious milk secretion around parturition, triggered by a fall in plasma progesterone levels. Although some col

In how many groups proteins may be classified, Proteins  may  be  classi...

Proteins  may  be  classified  broadly  into three  groups: a) Simple proteins, b) Conjugated proteins, and c) Derived proteins.

Explain the gonadotropic hormones (gth), Explain the Gonadotropic Hormones ...

Explain the Gonadotropic Hormones (GTH): There are two gonadotropic hormones which regulate gonadal functions. They are follicle stimulating hormone (FSH) and luteinizing hormo

Precautions in lasers nonionising radiations, Precautions : The following ...

Precautions : The following must always be observed while dealing with lasers. 1) Never look along a laser beam or expose any part of your skin to it. Beware of reflected laser

What is learning, QUESTION 1 ‘First Impression is the last impression.'...

QUESTION 1 ‘First Impression is the last impression.' Discuss this very often heard quote referring to the theory of Solomon Asch. Support your answer with examples from your o

Scientific method, The effect of varying the pH of the yeast solution on th...

The effect of varying the pH of the yeast solution on the functioning of an enzyme catalase

Explain mutarotation, Mutarotation:-   The  process whereby the  configu...

Mutarotation:-   The  process whereby the  configuration  of  an anomeric carbon converts from a and p and vice-versa.

Vaccination, Vaccination: Now  let us see how vaccination protects us...

Vaccination: Now  let us see how vaccination protects us from disease. We have mentioned above that the W.B.Cs.  produce antibodies which neutralise the toxins produced by th

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