University:
Campbell University
Course:
CHEM 111 | General Chemistry I
Academic year:

2019
Views:

356

Pages:

3
Author:

omiliar74be

KEY Review - Nomenclature and Lewis Diagrams 1.) Write the proper formula for the chemical names below. a.) sodium oxide ___________Na2O_________ b.) lithium hydroxide monohydrate ___LiOH • H2O___ c.) lead (II) nitride ___________Pb3N2_________ d.) Potassium sulphide ___________K2S___________ e.) tin (IV) telluride ___________SnTe2_________ f.) Nitric acid ___________HNO3__________ g.) barium bisulphide tetrahydrate ___Ba(HS)2 • 4H2O___ h.) dinitrogen monoxide __________N2O___________ 2.) Write the correct name for the following compounds. a.) CuO ____________copper (II) oxide___________ b.) V3N5 ____________vanadium (V) nitride_________ c.) NH4ClO4 ____________ammonium perchlorate________ d.) Pt2O3 • 3H2O ______platinum (III) oxide trihydrate______ e.) Cl2O ____________dichlorine monoxide_________ f.) HF _____________hydrofluoric acid__________ g.) I2O5 _____________diiodine pentoxide_________ 3.) Draw the Lewis structure for each of the following molecules: a.) H2S b.) SO3 c.) CH2B r2 d.) HCN 1 KEY 4.) Draw the Lewis diagram for each of the following polyatomic ions: a.) NH4+ b.) PO4-3 c.) NO3- d.) CO3-2 5.) Draw the Lewis structure for the following molecules or ions. a.) CH2F2 c.) PO3-3 b.) OF2 6.) For each of the bonds below: i.) Use delta notation (δ+ and δ-) to indicate which atom is more electronegative ii.) Use an arrow to point from the less electronegative atom to the more electronegative atom. a.) b.) c.) 7.) Identify the type of bond described for each of the following as ionic, polar covalent, nonpolar covalent, or metallic. _Polar Cov _ a.) the C O bonds in CO2 _Covalent_ b.) The bonds in F2 ___Ionic___ c.) the bonds in K2O _Covalent_ d.) The C __Metallic__ e.) the bonds in Ba _Polar Cov_ f.) The bonds in H2O C bonds in C3H8 2 8.) Determine whether the following five molecules are polar or nonpolar: Nonpolar – symmetrical bonds cancel out KEY Polar - asymmetrical bonds Nonpolar – symmetrical bonds cancel out Nonpolar – symmetrical bonds cancel out Polar - asymmetrical bonds due to Hydrogen 3