Exam 2 Preparation Fall 20211. Memorize polyatomic ions2. Nomenclature on the exam will have a similar format to the questions in the exercises.a. Names and formulas for cationsb. Names and formulas for anionsc. Names and formulas for binary ionic compoundsd. Names and formulas for binary molecular compoundse. Names and formulas for ionic compounds with polyatomic ionsf. Names and formulas for acids3. Molar mass and percent compositiona. Calculate molar mass.b. Calculate % composition of an element in a compound.c. Determine an empirical formula from a composition.d. Convert mass to moles and moles to mass.e. Convert moles to molecules (or formula units) and molecules (or formula units) to moles.f. Convert mass to molecules (or formula units) and molecules (or formula units) to mass.g. Convert moles to atoms.h. Convert mass to atoms.4. Reviewa. Octet rulei. For ionsii. For covalent bondingb. Bondingi. Single bondsii. Double bondsiii. Triple bondsc. Electronegativity & Polarityi. Electronegativity definitionii. Electronegativity difference and polarityd. Rules for drawing Lewis structurese. Drawing Lewis structuresf. Resonancei. Definitionii. Draw resonance structures5. Reviewa. VSEPRi. Definitionii. Electronic geometryiii. Molecular geometryiv. Bond anglesb. Molecular polarityc. Valence Bond Theory & Hybridizationd. Sigma & Pi
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