Important Information Periodic Table of Ions Sec 7

Important Information: Ø Ø Periodic Table of Ions Sec 7. 1 Practice Problems due Mon Ø p. 211 Set A (1 -2) p. 213 Set B (1 -2) p. 215 Set C (1 -2) p. 217 Set D (1 -2) Ø Ø Ø Ø Chapter 7 Notes: A-E add F-G Chapter 7 Vocabulary 1 -13 Activity: Counting Atoms due last Wed Activity: Naming Ionic Compounds due Tue Activity: Naming Molecular (Covalent) Compounds due Tue Sec 7. 1 Study Guide due Tue Activity: Naming Acids and Bases due Wed

Section 7. 1 Naming and Writing Formulas for Acids and Bases Acids are… l l l – Compounds that give off hydrogen ions (H 1+) when dissolved in water Will start the formula with H. There will always be some Hydrogen next to an anion. The anion determines the name.

F. Rules for Naming acids: (anions with different suffix: -ide, -ite, -ate) 1. If anion attached to hydrogen ends in -ide, put prefix hydro- and change -ide to -ic acid • HCl - hydrogen ion and chloride ion = hydrochloric acid • H 2 S hydrogen ion and sulfide ion = hydrosulfuric acid

F. Rules for Naming acids: * If the anion has oxygen in it, then it ends in -ate 2) 3) or –ite (polyatomic) change the suffix -ate to -ic acid (use no prefix) • Example: HNO 3 Hydrogen and nitrate ions = Nitric acid change the suffix -ite to -ous acid (use no prefix) • Example: HNO 2 Hydrogen and nitrite ions = Nitrous acid

F. Rules for Naming Acid Normal ending Acid name is… ____-ide hydro-___-ic acid ____-ate _____-ic acid ____-ite _____-ous acid

Practice by naming these: l l l HF hydrofluoric acid H 2 S hydrosulfuric acid H 2 SO 3 sulfurous acid H 2 SO 4 sulfuric acid HCN hydrocyanic acid

Write formulas for these: l hydroiodic acid HI l carbonic acid H 2 CO 3 l phosphorous acid H 3 PO 3 l hydrobromic acid HBr CH 3 COOH l acetic acid * breaks the rule of starting with H

Names and Formulas for Bases Base - an ionic compound that produces hydroxide ions (OH 1 -) when dissolved in water – Bases are named the same way as other ionic compounds: – The name of the cation (which is a metal) is followed by the name of the anion (which will be hydroxide).

G. Names and Formulas for Bases l To write the formula: 1) Write the symbol for the metal cation 2) followed by the formula for the hydroxide ion (OH 1 -) 3) then use the criss-cross method to balance the charges. l. Na. OH is sodium hydroxide l. Ca(OH)2 is calcium hydroxide

Practice by writing the formula for the following: l Magnesium hydroxide Mg(OH)2 l Iron (III) hydroxide Fe(OH)3 l Zinc hydroxide Zn(OH)2

Important Information: Ø Ø Periodic Table of Ions Sec 7. 1 Practice Problems due Mon Ø p. 211 Set A (1 -2) p. 213 Set B (1 -2) p. 215 Set C (1 -2) p. 217 Set D (1 -2) Ø Ø Ø Ø Chapter 7 Notes: A-E add F-G Chapter 7 Vocabulary 1 -13 Activity: Counting Atoms due last Wed Activity: Naming Ionic Compounds due Tue Activity: Naming Molecular (Covalent) Compounds due Tue Sec 7. 1 Study Guide due Tue Activity: Naming Acids and Bases due Wed 7. 2 Study Guide due Thurs