Question

chemistry i
part b: ionic vs covalent review
fill in the following sentences using the provided word bank:
ionic covalent electrostatic attraction cations
negatively high liquid losing
positively nonmetal delocalized poor
gaining anions metal dissolve
similar electronegativities

1. transfer of electrons results in the formation of an ____________________ bond.
2. a covalent compound is formed when elements with ____________________ combine together.
3. a cation is a __________________ charged ion formed by __________________ electrons.
4. an anion is a __________________ charged ion formed by __________________ electrons.
5. metals usually form ____________________.
6. non - metals usually form ____________________.
7. the cations and the anions in an ionic bond are held together with a strong force known as ____________________.
8. covalent compounds are ____________________ conductors of electricity.
9. sharing of electrons results in the formation of a ____________________ bond.
10. ionic compounds have ____________________ melting and boiling points.
11. ionic compounds usually ____________________ in water.
12. an ionic bond is formed between a __________________ and a __________________.
13. ionic compounds can conduct electricity when they are in ____________________ form.
14. the free floating electrons in a metallic bonding are called ____________________.

part c: combined naming
give the name or formula for the following compounds: (hint! ask yourself if it is ionic or covalent first)

1. (n_3p_4): __________________ 9. (feo): __________________
2. sodium chloride: __________________ 10. zinc sulfide: __________________
3. carbon monoxide: __________________ 11. phosphorus pentoxide: __________________
4. (li_2co_3): ____________________ 12. (p_2o_4): ____________________
5. (nh_4cl): __________________ 13. lead (iv) selenide: __________________
6. (obr_2): ____________________ 14. (be_3(po_4)_2): ____________________
7. iron (iii) bromide: __________________ 15. cobalt (iii) nitrate: __________________
8. gold (i) iodide: __________________ 16. rubidium nitride: __________________

explain how ionic compounds with polyatomic ions are both ionic and covalent in

Explanation:

For Part C, when naming or writing formulas for compounds:

• Covalent Compounds (like \(N_3P_4\), \(CO\), \(OBr_2\), \(P_2O_4\)): Use prefixes (mono-, di-, tri-, etc.) to indicate the number of each atom. For example, \(N_3P_4\) is trinitrogen tetraphosphide.
• Ionic Compounds:
• Binary Ionic Compounds (e.g., Sodium chloride, Zinc sulfide, Iron (III) bromide, Gold (I) iodide, FeO): Name the cation first (with Roman numerals for transition metals to indicate charge if variable), then the anion. For example, Sodium chloride is \(NaCl\), FeO is Iron (II) oxide.
• Ionic Compounds with Polyatomic Ions (e.g., \(Li_2CO_3\), \(NH_4Cl\), \(Be_3(PO_4)_2\), Cobalt (III) nitrate): Use the name of the polyatomic ion. For example, \(Li_2CO_3\) is Lithium carbonate.

Answer:

1. Trinitrogen tetraphosphide
2. \(NaCl\)
3. \(CO\)
4. Lithium carbonate
5. Ammonium chloride
6. Oxygen dibromide
7. \(FeBr_3\)
8. \(AuI\)
9. Iron (II) oxide
10. \(ZnS\)
11. \(P_2O_5\) (Note: Phosphorus pentoxide has the formula \(P_2O_5\) despite the sub - question writing \(P_2O_4\) which might be a typo)
12. Diphosphorus tetraoxide
13. \(PbSe_2\)
14. Beryllium phosphate
15. \(Co(NO_3)_3\)
16. \(Rb_3N\)