Sum of oxidation numbers of all atoms in an ion is the charge on the ion. Using this:
1. -1
2.+1
3.-2
4. -3
What is the sum of the oxidation numbers of the atoms in each of the following polyatomic ions? 1st attempt Part...
Determine the oxidation numbers of each of the elements in the following reaction, and identify which, if any, are oxidized or reduced. SiO2 (s) +2H,0(1) H.SO.(aq) 1st attempt Part 1 (1 point) See Periodic Table See Hint SIO2 Part 2 (1 point) H20 H o Part 3 (1 point) HASIO zo Part 4 (1 point) Which are oxidized? Choose one: O Si oo OH O None Part 5 (1 point) Which are reduced? Choose one or more: Si oo OH...
18. Identify the oxidation numbers of the atoms in the following polyatomic ions or compounds: · A. H2PO4 H +1 D is B. S2O32- 2-2 X 3 C. NO2 D. MnO4 E. BrO3- F. Cr2O72-
Calculate the oxidation numer (oxidation state) of the atoms in these compunds (polyatomic ions): 1. AlCl3 2. KVO3 3. N2O5 4. H2PO^-4 5. KMnO4 6. MgMnO4
Give the oxidation number of the nitrogen atom(s) in each of the following molecules. 1st attempt Part 1 (1 point) Jual See Per Elemental nitrogen (N2) Part 2 (1 point) Hydrazine (N2H2) Part 3 (1 point) Ammonium ion (NH4+)
Be sure to answer all parts. Assign oxidation numbers to each atom in the following polyatomic ions: 0,, not need to include a positive sign for a positive oxidation number. 02? 0: CIO": C1: 0 CIO : C1:2 0 :
1. Fill in the table below for the following compounds- molecules and polyatomic ions. For each compound, calculate the number of available electrons for all the atoms in the molecule and determine what the central atom in the molecule will be. Central Atom Total Number Molecular of Available Formula Electrons HCN P1 P2 SO3 P3 P4 NO3 P5 P6 P7 P8 SIH4 P9 P10 SO2CI2 NH4 P11 P12 P13 P14 PO43 P15 P16 PF5 SF&C P18 P17 P19 P20 XeF2
Calculate the molarity of each of the following ions. 4th attempt Part 1 (1 point) 0.933 g Nat in 130.0 mL of a NaCl solution. Part 2 (1 point) 0.760 g of Cl in a 130.0 mL of a NaCl solution. Part 3 (1 point) 0.400 g of SO42- in 130.0 mL of Na2SO4 solution. Part 4 (1 point) 0.230 g of Ca2+ in 130.0 mL of CaCl2 solution.
See page 181 11 Question (1 point) Determine the oxidation numbers of each of the elements in the following reaction, and identify which of them, if any, are oxidized or reduced. 3NO2(s)+H,0() 2H (aq) +2NO, (aq) +NO(g) 1st attempt See Periodic Table Q See Hint Part 1 (0.2 point) NO2 N: O: Q See Hint Part 2 (0.2 point) Part 2 (0.2 point) O See Hint Но Н: O: Part 3 (0.1 point) Q See Hint H* H: Part 4...
Calculate the molarity of each of the following ions. 6th attempt Part 1 (1 point)FeedbackSee HintSee Periodic Table 0.693 g Na+ in 130.0 mL of a NaCl solution. Part 2 (1 point)FeedbackSee Hint 0.960 g of Cl– in a 130.0 mL of a NaCl solution. Part 3 (1 point)FeedbackSee Hint 0.400 g of SO42– in 130.0 mL of Na2SO4 solution. Part 4 (1 point)FeedbackSee Hint 0.320 g of Ca2+ in 130.0 mL of CaCl2 solution.
Oxidation Numbers 1. Assign oxidation numbers to the atoms in each of the following. a) SO2 d) Mgl b) HCIO e) CaH c) Cr,0,2 f) Fe, 2. For each of the following: •assign oxidation numbers •indicate whether the equation represents a redox reaction .if redox, identify OA and RA a) Cu + 2 AgNO, 2 Ag + Cu(NO3)2 b) Pb(NO3)2 + 2 KI Pbl, + 2 KNO, c) Cl2 + 2 KI I2 + 2 KCI d) 2 NaCl 2...