Give the oxidation number of the underlined atoms in the following molecules

Give the oxidation number of the underlined atoms in

This preview shows page 2 - 5 out of 7 pages.

4.Give the oxidation number of the underlined atoms in the following molecules and ions: (7 points) a. Cl F = 1+ b. I F 7 = 7+ c. C H 4 = 4- d. C 2 H 2 = 1- e. C 2 H 4 = 2- f. K 2 Cr O 4 = 6+ g. K 2 Cr 2 O 7 = 6+ h. KMn O 4 = 7+ i. NaHC O 3 = 4+ j. O 2 = - k. NaI O 3 = 5+ l. K 2 O = -1/2 m. P F 6 = 6+ n. Au Cl 4 = 3+ (Reference: Chang 4.47) 2 Copyright © 2014 by Thomas Edison State College. All rights reserved.
Image of page 2
5.For the following reactions, identify the type (combination, combustion, decomposition, displacement, methathesis [double-displacement)] neutralization), balance the reaction, and for the redox reactions identify the oxidizing agent and reducing agent. (12 points)(a) CH4+ O2CO2+ H(b) HCl + NaOH H2O + (c) H2+ O2H2(d) CaCO3+ HCl CaCl2+ CO2+ (e) Zn + HCl ZnCl2+ (f) NaCl Na + Cl 2 O NaCl O H 2 O H 2 2 6.Calculate the molarity of each of the following solutions: (4 points)a.29.0 g of ethanol (C2H5OH) in 545 mL of solutionMolarity = m/L, Find molar mass of each compound. molar mass = g/mol b.9.00 g of sodium chloride (NaCl) in 86.4 mL of solution 7.Calculate the mass of KI in grams required to prepare 5.00 × 102mL of a 2.80 M solution. (3 points) 3 Copyright © 2014 by Thomas Edison State College. All rights reserved.
Image of page 3
Image of page 4
Image of page 5

You've reached the end of your free preview.

Want to read all 7 pages?

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture