Name ______________________________________ Chapter 6 – Naming Compounds Purpose of Lab/Activity: To assemble and create as many different and non-repeating compounds as possible using the ion/polyatomic ion template Based on the charges of the ions, apply the concept that a compound must have a net charge of zero To be able to write the names of simple ionic formulas that use ions and polyatomic ions Prerequisite: Prior to this activity, the student should be able to: Interpret formula representations of molecules and compounds in terms of composition and structure. Write chemical formulas for simple covalent (HCl, SO2, CO2, and CH4), ionic (Na+, Cl− → NaCl) and molecular (O2, H2O) compounds. Predict the formulas of ionic compounds based on the number of valence electrons and the charges on the ions so that the net charge of the compound is zero. Vocabulary: Formula, ionic compounds, net charge, ion, polyatomic ion, valance electrons, charge Materials (individual or per group): Ion/polyatomic ion template paper 1 or more color pencils scissors glue stick copy paper Procedures: 1. Using the ion/polyatomic ion template, shade in lightly the positive ions completely 2. Negative ions are half-colored. Draw a diagonal line in each negative ion box, and shade in lightly the bottom half for each negative ion. 3. Cut out all of the boxes from the ion/polyatomic ion template. 4. Preassemble compounds on your desk following the rules that no two compounds can be repeated, and that the net charges of each compound must equal to zero. 5. Glue the compounds to a sheet of paper. 6. Write in the formula and name all compounds using the rules for nomenclature of ionic compounds and polyatomic ions Data Analysis/Results: 1. Use your own words to describe how you organized your thoughts when you carried out this experiment? 2. How could you make the lab more efficient? LPPACS – Schmidt 1 Name ______________________________________ Pick the correct formula. 1. Aluminum oxalate 7. sodium bicarbonate o AlO o NaCO3 o Al2O3 o Na(CO3)2 o AlC2O4 o NaHCO3 o Al2(C2O4)3 o Na(HCO3)2 2. Calcium fluoride 8. Platinum(IV) chloride o CaF o PtCl o CaF2 o Pt4Cl o Ca2F o PtCl2 o CaFO3 o PtCl4 3. The Roman numeral in ionic formulas refers 9. Strontium nitride o to the charge on the cation o SrN o to the charge on the anion o Sr3N2 o to the number of cations o SrNO2 o to the number of anions o Sr(NO2)2 o to none of these 10. Potassium dichromate 4. Potassium dihydrogen phosphate o KCrO4 o K(PO4)2 o KCr2O7 o K(HPO4)2 o K2Cr2O7 o K(H2PO4)2 o K2(Cr2O7)2 o KH2PO4 11. Iron(III) Oxide 5. zinc perchlorate o Fe3O o ZnCl4 o Fe2O3 o ZnClO4 o Fe3O2 o Zn(ClO4)2 o Zn2(ClO4)2 12. Potassium permanganate 6. ammonium chloride o KMn o KMnO o NH3Cl o KMnO2 o (NH4)7Cl o KMnO4 o NH4Cl o NH4Cl4 LPPACS – Schmidt 13. Sodium Acetate 2 o Na2C2H3O2 o Na2(C2H3O2)2 o NaC2H3O2 Name ______________________________________ 14. Cesium Bromide 20. KHCO3 o CsBr o potassium carbonate o CsBr2 o potassium (I) carbonate o Cs2BrO3 o potassium hydrogen carbonate o CsBrO3 o 15. Al2O3 potassium (I) hydrogen carbonate 21. KHCO3 can also be called o aluminum oxide o aluminum (II) oxide o potassium bicarbonate o aluminum (III) oxide o potassium (I) bicarbonate o aluminum (III) trioxide o dialuminum trioxide 22. Hg2O 16. NH4NO3 o mercury oxide o mercury (I) oxide o ammonium nitride o dimercury oxide o ammonium (I) nitrate o mercury (II) oxide o ammonium nitric o dinitrogen hydrogen trioxide o mercurous oxide o ammonium nitrate o mercuric oxide 23. Hg2O can also be called 17. SrSO4 24. Cu2O o strontium sulfide o copper oxide o strontium (II) sulfide o copper (I) oxide o strontium sulfate o copper (II) oxide o strontium (I) sulfate o cupric oxide o strontium (II) sulfate o 18. Ba(ClO3)2 copper (II) oxide and cupric oxide 25. KMnO4 o barium chloride o barium chlorate o potassium manganous oxide o barium (II) chloride o potassium oxide o barium (II) chlorate o potassium manganate o barium dichlorate o potassium permanganate o potassium (I) permanganate 19. Mg(OH)2 26. NaC2H3O2 o magnesium hydroxide o magnesium (I) hydroxide o sodium acetate o magnesium (II) hydroxide o sodium (I) acetate magnesium hydrogen oxide LPPACS – Schmidt o 3 Name ______________________________________ 27. Ba(ClO)2 o barium chloride o barium chlorite o barium (II) chloride o barium hypochlorite o barium dichlorite 28. CoCr2O7 o cobalt chromate o cobalt (II) chromate o cobalt (I) chromate o cobalt (II) dichromate o cobalt (I) dichromate 29. BeS o beryllium sulfide o beryllium sulfate o beryllium (I) sulfide o beryllium (II) sulfide o beryllium (I) sulfate 30. NaCN o sodium (I) cyanide o sodium cyanide 31. PbO2 o lead (II) oxide o lead (IV) oxide 32. NH4HSO4 o ammonium (I) sulfate o ammonium sulfite o ammonium hydrogen sulfate o ammonium hydrogen sulfite LPPACS – Schmidt 4 Conclusions: 1. List and describe at least 3 sources of error observed during this activity that could have led to poor results. 2. Use your knowledge for ionic nomenclature to name each compound listed. a. Na3N ______________________ b. CaF2 ______________________ c. FeO ______________________ d. Al2S3 ______________________ e. MgSe ______________________ f. CoBr2 ______________________ g. CuCl2 ______________________ h. LiBr ______________________ i. SnS2 _______________________ j. Sr3P2 ________________________ 3. Write the names for each of the following compounds that use polyatomic ions. a. NaNO3 ______________________ b. BaSO4 ______________________ c. Fe2O3 ______________________ d. CrPO3 ______________________ e. (NH4)2O_____________________ f. RbNO2 ______________________ 4. Write the correct symbols with the correct subscripts for each of the following compounds. a. Aluminum phosphate ______________________ b. Potassium nitrate ______________________ c. Sodium hydrogen carbonate ______________________ d. Calcium carbonate ______________________ e. Magnesium hydroxide ______________________ f. Ammonium nitrate ______________________ g. Tin(II) nitrate ______________________ h. Iron(III) phosphate ______________________ i. Copper(I) sulfate ______________________ LPPACS – Schmidt 5