Chemistry 1110 Covalent Properties I. Assign electronegativity values to the following elements: N I S P H B O F Br C II. Tell whether the following bonds are polar or nonpolar. If polar, show which side has an accumulation of (-) charge and which has an accumulation of (+) charge. H-Cl O-H C-O N-N C-F Cl-N F-Cl H-S H-Br C-S S-F O-P H-C C-C H-N III. The following molecules have been drawn to represent the actual geometric arrangements of the atoms. Tell whether the following molecules are polar or nonpolar. SO3 NH3 H2Se CBr4 HOCl IV. Tell whether the following molecules are polar or nonpolar. PBr3 SO2 NF3 CH2O SiCl4 C2H4 H2S Br2 HCN CH2F2 V. Tell what kind of intermolecular forces the following compounds are subject to: LiI F2 NaCN HCN HCl CO2 CO C4H10 H2O SO2VI. Arrange the following groups of compounds by boiling point: lowest to highest (a) CH4 C4H10 C3H8 C2H6 (b) H2O HOCH2CH2OH CH4 C2H6 VII. Fill in the following table for the four types of solids discussed in this class: Solid type Smallest Unit Inter-particle Forces Properties Examples Ionic Molecular Covalent-Network Metallic VIII. Provide the appropriate name for each of the following covalent compounds: NO N2O N2O4 OBr2 SiCl4 SF6 P4O10 P2O5 IX. Give the appropriate formula for the following covalent compounds: phosphorous triiodide carbon monoxide sulfur dioxide nitrogen disulfide bromine trifluoride boron
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