Name: _________________ Class: _____ Science 10: Chemistry Review so far… 1. Complete the table below Name Symbol # of p+ # of e- # of nO cesium Ge 30 7 10 xenon 2. Explain the difference between an atom and an ion. 3. Draw the Bohr model for: a) sodium atom b) fluorine atom b) sodium ion d) fluoride 4. Explain how Bohrs model of an atom differs from the quantum mechanical model of an atom (p25). 1. Draw in the staircase line with a dark line. What is the significance of this line? 2. What do the periods of the table tell you about? 3. Shade the diatomic and polyatomic elements with coloured pencil (use 1 colour for diatomic and another for polyatomic). Why are these important to remember? 4. Which group number /column contains unreactive elements? What are these called? Why are they unreactive? 5. Define each of the following and provide an example of each: a) cation c) polyatomic ion b) anion d) multivalent metal Compounds (p41-60) 1. What is the difference between ionic bonds and covalent bonds? Which type of bond is stronger, and why? [pg 54] 2. Describe how to recognize an ionic compound from both its chemical formula and its name. 3. Describe how to recognize a polyatomic ionic compound from both its chemical formula and its name. 4. Describe how to recognize a molecular compound from both its chemical formula and its name. 5. Describe how to recognize an acid from both its chemical formula and its name. 6. Describe how to recognize a base from both its chemical formula and its name. Polyatomic Compounds: Complete the table. COMBINE IONS FORMULA NAME iron(II) & nitrate Fe2+ NO3− Fe(NO3)2 iron(II) nitrate aluminium & nitrate Al3+ NO3− Al(NO3)3 aluminium nitrate sodium & sulfate lead(IV) & sulfate magnesium & carbonate gold(III) & sulfite zinc & carbonate ammonium & nitrate copper(I) & phosphate silver & hydroxide aluminium & hydroxide lead(II) & phosphate potassium & acetate manganese(IV) & sulfate Naming and Formulas Indicate whether the compound is: Ionic (I), Molecular (M), Acidic (A) or Basic (B) , then provide the correct name or formula. Type Formula 1. BCl 2. ZnS 3. HCl(aq) 4. P4O7 5. Cr2(SO3)3 6. N2 7. Ca3N2 8. H3PO4(aq) 9. NaOH(aq) 10. O2 11. CCl4 12. AuI 13. HNO2(aq) 14. S8 15. Fe(NO3)2 16. H3BO3(aq) 17. HCN(aq) 18. H2 19. Fr3P 20. KMnO4 21. NH4NO3 22. TiO2 Name Type Name 1. platinum(II) thiosulfate 2. phosphorous 3. hydrobromic acid 4. calcium hydroxide 5. sodium chromate 6. colbalt(III) chlorate 7. sulfur trioxide 8. copper(II) nitrate 9. iodine 10. chlorous acid 11. cadmium bromide 12. sodium chloride 13. dinitrogen tetraoxide 14. barium carbonate 15. sulfuric acid 16. magnesium hydroxide 17. aluminium chloride 18. nickel(II) nitrite 19. hydrofluoric acid 20. acetic acid 21. zirconium sulfide 22. sulfur hexafluoride 23. pentaphosphorous decasulfide 24. postassium sulfate Formula
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