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(Transition Metals) an Ionic Compound Is a Chemical Compound Comprising Ions Held Together by Electrostatic Forces Termed Ionic Bonding

(Transition Metals) an Ionic Compound Is a Chemical Compound Comprising Ions Held Together by Electrostatic Forces Termed Ionic Bonding

NTI Day 4 Writing Ionic Formulas (Transition Metals) An ionic compound is a comprising held together by electrostatic forces termed . The compound is neutral overall, but consists of positively charged ions called cations and negatively charged ions called anions. These can be simple ions such as the (Na+) and (Cl−) in , NaCl, or polyatomic species such as + 2− the (NH4 ) and (CO3 ) ions in (NH4)2CO3. Ionic compounds form when elements, or polyatomic ions, have a large difference in . from one species is transferred to another, resulting in oppositely charged ions that attract to each other. Writing Ionic Formula Notes: 1. Write first element and its oxidation number (charge); if first element is a transition metal, the Roman numeral will indicate the charge. 2. Write second element/group of elements and its oxidation number. 3. If oxidation #s add to zero, cancel them; if not, switch For more examples of how to write formulas of ionic compounds with transition metals, pull your work from your notes. Additional examples can be viewed in this tutorial. https://www.youtube.com/watch?v=H4nfE8gRX7Q For more examples of how to names of ionic compounds with transition metals, pull your work from your notes. Additional examples can be viewed in this tutorial. https://www.youtube.com/watch?v=Rq0A-AHdB74&t=17s

Multiple Choice Identify the choice that best completes the statement or answers the question.

1. What is the formula for lead (II) ?

(a) PbO2 (b) PbO (c) Pb2O (d) Pb2O2

2. What is the formula for iron (II) oxide?

(a) FeO (b) FeO3 (c) Fe2O (d) Fe2O3

3. What is the formula for iron (III) sulfide?

(a) FeS (b) Fe2S3 (c) Fe2S (d) Fe2S3

4. What is the formula for iron (III) ?

(a) FeF (b) Fe3F (c) FeF3 (d) Fe3F3

5. What is the formula for chromium (IV) bromide?

(a) Cr4Br (b) CrBr4 (c) CrBr (d) CrBr2 NTI Day 4 6. What is the formula for Tin (IV) oxide?

(a) Sn4O (b) SnO4 (c) SnO (d) SnO2

7. What is the formula for Cobalt (III) oxide?

(a) CoO (b) Co2O3 (c) Co3O (d) CoO3

8. What is the formula for Copper (I) Nitride?

(a) CuN (b) CuN3 (c) Cu3N (d) Cu3N2

9. What is the chemical name for CuCl2? (a) copper dichloride (b) copper (I) chloride (c) copper chloride (d) copper (II) chloride

10. What is the chemical name for NiS? (a) nickel sulfide (b) nickel (I) sulfide (c) nickel monosulfide (d) nickel (II) sulfide

11. What is the chemical name for TiCl3? (a) titanium chloride (b) titanium (II) chloride (c) titanium trichloride (d) titanium (III) chloride

12. What is the chemical name for Cu2O? (a) copper oxide (b) copper (I) oxide (c) dicopper monoxide (d) copper (II) oxide

13. What is the chemical name for CuO? (a) copper oxide (b) copper (I) oxide (c) dicopper monoxide (d) copper (II) oxide

14. What is the chemical name for PbO2? (a) lead oxide (b) lead (II) oxide (c) lead dioxide (d) lead (IV) oxide

15. What is the chemical name for Mn2O3? (a) manganese oxide (b) manganese (II) oxide (c) dimanganese trioxide (d) manganese (III) oxide

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