December 12, 2018 12/12 Have out packet pp.9,11-12, & Reference Table Answer on the back of p.1 (blank) 1. How do you know when a chemical formula needs a Roman numeral in its' name? 2. What is wrong with these formulas? a. C2O4 b. K2SO4 c. ZnOH2 d. Cu(II)S KSO2 3. What is wrong with this name: FeCl2 iron chloride 4. Which element forms more than one binary compound w/chlorine? Na, Ba, Cu, Cs December 12, 2018 1. How do you know when a chemical formula needs a Roman numeral in its' name? When the FIRST element has more than one positive oxidation number Roman numeral = the oxidation # used December 12, 2018 2. What is wrong with these formulas? a. C2O4 b. K2SO4 c. ZnOH2 d. Cu(II)S KSO2 3. What is wrong with this name: FeCl2 iron chloride 4. Which element forms more than one binary compound w/chlorine? Na, Ba, Cu, Cs more than one + oxidation # December 12, 2018 Compound Chemistry Project Compound Interest website - choose a category and if it won't open, just google that category (Alcohol Chemistry, Aroma Chemistry, Poison Chemistry, etc. ) - the images of various posters will pop up then you can copy and paste that image into your project - once you have the poster, you can use other sites to search for the information needed in the google doc December 12, 2018 copper (I) sulfide p.9: 1-10 calcium hydrogen carbonate potassium sulfate mercury (I) iodide potassium cyanide lead (IV) oxide potassium thiocyanate magnesium nitride mercury (II) hydroxide potassium sulfate December 12, 2018 ammonium nitrite p.9: 11-20 barium chlorate potassium sulfite Zinc bromide iron (III) chromate Sodium perchlorate potassium hypochlorite magnesium hydroxide sodium permanganate Zinc acetate December 12, 2018 look up charges, then "cross and drop" p.9: 31-40 December 12, 2018 Check answers to pp.11-12 1-A 7-B 13-A 19-A 2-C 8-C 14-B 20-A 3-B 9-A 15-A 4-C 10-B 16-C 5-D 11-C 17-D 6-B 12-C 18-B Take Quiz on Writing/Naming December 12, 2018 pp.11-12 December 12, 2018 December 12, 2018 p.14 .