1 / 9

Comprehensive Student Guide to Writing Chemical Formulae

This guide provides essential rules and training for students learning to write chemical formulae accurately. Key points include the formation of positive ions (cations) and negative ions (anions), ensuring that there is no overall charge in the formula, and the use of brackets for multiple polyatomic ions. The guide details common cations, anions, and examples of chemical compounds, helping students grasp the fundamental concepts of chemical nomenclature effectively. Perfect for academic use and revision.

marcus
Download Presentation

Comprehensive Student Guide to Writing Chemical Formulae

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. All aboutchemicalformulae modified internet version

  2. ; Student guide to writing chemical formulae

  3. Rules leading to correct formula 1. Positive ions (cations) can join to negative ions (anions) 2. Positive ions usually form the first part of the name (99% cases) 3. If the formula is correct there is no overall charge 4. If you have more than one polyatomic ion it is placed inside brackets

  4. Essential training ions Positive ions (Cations) Negative ions (Anions) - 1 + 1 fluoride F- sodium Na+ potassium K+ chloride Cl- hydrogen H+ bromide Br- lithium Li + hydroxide OH- silver Ag+ nitrate NO3- ammonium NH4+ hydrogencarbonate HCO3- +2 magnesium Mg2+ - 2 carbonate CO32- calcium Ca2+ oxide O2- barium Ba2+ sulphide S2- zinc Zn2+ sulphate SO4 2- iron(11) Fe2+ sulphite SO3 2- copper Cu2+ 2- chromate CrO4 - 3 +3 aluminium Al3+ nitride N3- chromium Cr3+ 3- phosphate PO4 iron(111) Fe3+

  5. IONS TABLE

  6. http://www.eastmarinedrive.com/

  7. Chemical Formulae 1. sodium fluoride CHARGES IONS NUMBERS FORMULA

  8. magnesium fluoride other examples silver hydroxide calcium nitrate ammonium carbonate MgF2 (NH4)2CO3 AgOH Ca(NO3)2

  9. other examples aluminium bromide chromium sulphide AlBr3 Cr2S3

More Related