Here's a list of 14 compounds that you should know by heart. Most of these have regular names that we covered in our Naming and Compounds unit (so you can just use the rules we've learned). Some have non-standard names that you just have to remember :(
Memorize these and homework and tests get quicker and easier. We'll continue to use these all year. Mr. K will be having weekly quizzes ... : )
| Made of | Name | Formula |
| hydrogen and chloride ion | hydrochloric acid | HCl |
| hydrogen and nitrate | nitric acid | HNO3 |
| hydrogen and sulfate | sulfuric acid | H2SO4 |
| hydrogen and phosphate | phosphoric acid | H3PO4 |
| hydrogen and carbonate | carbonic acid | H2CO3 |
| hydrogen and two oxygen | hydrogen peroxide | H2O2 |
| hydrogen and one oxygen | water | H2O |
| sodium and hydroxide | sodium hydroxide | NaOH |
| ammonium and hydroxide | ammonium hydroxide | NH4OH |
| ammonia and water | aqueous ammonia | NH4OH |
| nitrogen and hydrogen | ammonia | NH3 |
| ammonium and sulfide | ammonium sulfide | (NH4)2S |
| carbon and two oxygen | carbon dioxide | CO2 |
| potassium and chlorate | potassium chlorate | KClO3 |
Remember criss-cross for ionic formulas, greek system for covalent compounds.