1. Naming Binary Acids, Bases and Gases

2. Binary Acids (two elements) Recall: All acids contain a hydrogen ion (H + ). Acids are compounds made of H + and a non-metal

3. How to name binary acids Hydro ________ ic acid Examples: 1. HCl (aq) – hydrochloric acid 2. HBr (aq) – hydrobromic acid

4. How to determine the formula of binary acids Criss Cross the valences Examples 1.Hydrosulphuric acid H + S 2- H 2 S (aq) 2.Hydroiodic acid H + I - HI (aq) *Note: If we have HCl (g), name it hydrogen chloride

5. Bases Recall: All bases contain a hydroxide ion (OH - ). Bases are made of OH - bonded to a metal

6. How to name bases. Metal name + hydroxide Examples: 1.Ca(OH) 2 – calcium hydroxide 2.NaOH – sodium hydroxide 3.Fe(OH) 3 – iron (III) hydroxide

7. To determine the formula, criss cross the valences. Examples: 1.Lithium hydroxideLi + OH - LiOH 2.Copper (II) Cu 2+ OH - Cu(OH) 2 hydroxide

8. Naming Gases Noble Gases (monoatomic) Example: He – helium gas Argon gas - Ar Diatomic gases (two atoms) I 2 – iodine gas Br 2 – bromine gas Cl 2 – chlorine gas F 2 - – fluorine gas O 2 – oxygen gas N 2 – nitrogen gas H 2 – hydrogen gas I Bring Clay For Our New House