4. Formal charge calculations (show your work!):Terminal O: #1:N:Central OC:Terminal O #2:5. Bond polarity, show your calculation of electronegativity difference and label each bond as polar ornonpolar:N---O:C---H:C---O: Information collected:Fireworks need a colorant (to make the pretty colors), a propellant (to shoot the firework into the sky), aburst charge (to blow the firework apart), and an oxidizer (provides oxygen for the burst charge reaction). Theburst charge can be any of a number of available explosive chemicals. Oxidizers provide oxygen for the fuel toburn. Common oxidizers are chlorate (CIO3¬), carbonate (CO32-), sulfate (SO42–) and nitrate (NO3¬) ions.Usually the colorants are hot, glowing metals. In the flame test for elemental identity, compounds containingstrontium ions yield a bright red flame. Copper (II) ion flames are blue. If we mix strontium chlorate withcopper (II) chlorate, the firework will be purple! Common propellants used in fireworks contain carbon andsulfur. The "glue" is often dextrin, a cellulosic polymer made from connected units of C6H1206.The ProblemIn a blue-burst firework, copper (II) chlorate reacts with carbon to make copper (II) chloride and carbondioxide.The skeletal structure of a propellant (C6H9N3012) is shown below (dashed lines show connectionsbetween elements).Terminal O #2Terminal O#1NFormal charge:find formalAtoms needingformal chargeCentral Ocharge for theindicated atomsH---to help find the"best" structure;show your workin the providedtable.

The formal charge can be calculated as: F.C = No of valence electrons – ½ no of Bonding electrons-…

4. Formal charge calculations (show your work!): Terminal O: #1: N: Central O C: Terminal O #2: 5. Bond polarity, show your calculation of electronegativity difference and label each bond as polar or nonpolar: N---O: C---H: C---O:

4. Formal charge calculations (show your work!): Terminal O: #1: N: Central O C: Terminal O #2: 5. Bond polarity, show your calculation of electronegativity difference and label each bond as polar or nonpolar: N---O: C---H: C---O:

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter9: Energy And Chemistry

Section: Chapter Questions

Problem 9.4PAE

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