
Give the oxidation number of the nitrogen atom(s) in each of the following molecules. 1st attempt...
What is the sum of the oxidation numbers of the atoms in each of the following polyatomic ions? 1st attempt Part 1 (1 point) OH- Choose one: +1 Oo 0 -1 Part 2 (1 point) NH4 Choose one: +1 oo O-1 Part 3 (1 point) SO42- Choose one: O +2 Oo 0 -2 Part 4 (1 point) PO43- Choose one: ООО
Show the change in oxidation number (give number of electrons gain or lost, per atom, for example 3e- gained. S22- ---> S NaCl ---> NaClO MnO4- --->Mn(OH)3 NH4+ ---> NH3 HCNO ---> HCHO2
Determine the oxidation number of nitrogen in each of the following molecules: NH_3 F_3 N_2O_3 NO NO_2 H_2NNH_2 NO_2
Give the oxidation number for each atom in the following elements and ions: Br2 Cu2+ Ni O3 Li+ S8 Ca F- P3- H- Fe3+ Ox #: For ionic compounds made of monoatomic ions, the oxidations numbers are assigned based on the monoatomic rule above. Give the oxidation number for each atom in the following ionic compounds: Compound Cation Cation oxidation number Anion Anion oxidation number NaCl Na+ +1 Cl- -1 LiF CuS
02 Question (4 points) Dinitrogen pentoxide (N2Os) decomposes as follows to nitrogen dioxide and nitrogen trioxide: N,05(8) ► NO,(8) + NO,(8) Calculate the average rate of the reaction between consecutive measurement times in the following table. Time (s) IN 20s) (molecules/cm3) 0.00 1.405x1012 1.344x1012 1301x102 1270x102 1.249x102 IN E 1st attempt Part 1 (1 point) W See Pe Express every answer to two significant figures late 1 molecules/(cms) Part 2 (1 point) Rate 2- molecules (cm.) 1st attempt Part 1...
1.) In each part, assign the oxidation state (oxidation number) of each atom in the following molecul ons: a. i.) Na:SO ) NaNO k.) KCIO 1.) SOCI: (S is central atom) m.) CIF -Z b.) C2H2 c.) C2H d.) CCl e.) HO f.) HCO, g.) PO,3 h.) LiBr n.) B2H o.) HS p.) CN
5. Determine the molecular shapes of the following molecules/ions and the hybridization on the central atom of each molecule/ion. (a) 13"; (b) AsFs; (c) ,2; (d) ClO2; (e) IFs (f) HCOOH 6. Draw three resonance structures of carbon dioxide, and use formal charges to determine which of them is most important contributor to the Lewis structure. 7. Which of the following has the stronger nitrogen-to-nitrogen bond? The longer nitrogen-to-nitrogen bond? N2H2 N2H4
For the indicated atom in each of the following molecules or ions, give the number and arrangement of the electron pairs around that atom. (a) As in AsO43- number arrangement linear O bent trigonal planar square planar O tetrahedral (b) Se in Se042- number arrangement O linear O bent trigonal planar square planar tetrahedral O (c) S in H2S number arrangement O linear bent trigonal planar square planar tetrahedral O
Consider each of the following molecules and/or ions. Give the hybridization for the central atom in each case, and also give the molecular geometry. Ignore any distortions in the geometry due to non-equivalent terminal atoms. molecule or ion central atom hybridization for central atom molecular geometry CIO; (b) Seot (c) coza CO2 Cl2 Answer the following questions about the hybrid orbitals on the phosphorus atom in the POCl; and PClz molecules. What are the expected geometries of these molecules? Ignore...
Part 2 (1 point)
Rate 2 = molecules/(cm3·s)
Part 3
Rate 3 = molecules/(cm3·s)
Part 4
Rate 4 = molecules/(cm3·s)
@ See page 639 02 Question (4 points) Dinitrogen pentoxide (N2O5) decomposes as follows to nitrogen dioxide and nitrogen trioxide: N,93(g) — NO2(g) + NO3(g) Calculate the average rate of the reaction between consecutive measurement times in the following table. Time (s) [N2O5] (molecules/cm3) 0.00 1.505x1012 1.55 1.444x1012 3.10 1.401x1012 4.65 1.370x1012 1.349x1012 6.20 v 1st attempt Part 1 (1 point)...