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 transfusion of blood, Explain the Transfusion of Blood Blo...

Explain the Transfusion of Blood Blood has been considered as the elixir of life. However, in ancient times, patients were bled to get rid of their foul fluid. Later, as blood

Atoms and elements, why the atoms in neon gas do no join up in the same way...

why the atoms in neon gas do no join up in the same way that hydrogen atoms do?

What is oracle clinical, Question 1 What is Oracle Clinical? Bring out evo...

Question 1 What is Oracle Clinical? Bring out evolutionary effect of Oracle clinical applications in Pharmaceutical industries Question 2 What is the significance of MedDR

Adolescence, Adolescence: Mind and Body, you have already studied that ...

Adolescence: Mind and Body, you have already studied that certain hormones are essential  for proper physical development of an  individual. Around the age of  12,  starts a pe

Physico-chemical properties of biotin, Important physico-chemical propertie...

Important physico-chemical properties of biotin include  the following: a)  It forms colourless, needle shaped crystals. b)  The vitamin is sparingly soluble in  cold water

Transport in river valley civilisations, Transport: River Valley civi...

Transport: River Valley civilisations were characterised by  settlements along the rivers and growth of cities which needed, among.other  things, stones and wood from distant

Explain saponification, Saponification :- Fats when  boiled with  alcoh...

Saponification :- Fats when  boiled with  alcoholic solution of NaOH or KOH undergo hydrolysis into glycerol  and  fatty acids  and  the  latter  form  soaps with Na or K. The

Define calculi and casts - abnormal constituent of urine, Define Calculi an...

Define Calculi and casts - abnormal constituent of urine An abnormal concretion in the body usually formed of mineral salts and found in the gall bladder, kidney or urinary bla

Forebrain , Forebrain: The largest part of  the brain that you  see in ...

Forebrain: The largest part of  the brain that you  see in Fig. is the cerebrum. It consists of  two halves or hemispheres  joined  together by  a band of  nerve fibres. Intere

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