Mrs. Langman's Chemistry Classes

Recorded Classes

Unit 1: Measurements and Calculations

Measuring with Sig Figs

Measuring with Sig Figs

Sig Figs - Identifying and Rounding

Identifying and Rounding Sig Figs

Operating with Sig Figs

Operating with Sig Figs (+,-,x,/)

Scientific Notation

Factor Label Method and Metric System Part 1 — 9/8/15

Factor Label Method and Metric System Part 2 — 9/9/15

Accuracy and Precision

Qualitative vs Quantitative Measurements

Unit 2: Matter, Its Properties, and Changes

Unit 3: Atoms: The Building Blocks of Matter

Bohr Model of the Atom and Atomic Emission Spectra

Average Atomic Mass — 10/19/15 Stop watching at 27 minutes (after 2nd example problem)

Unit 4: Electrons in Atoms

Light Properties and Calculations

Quantum Mechanical Model

Orbital Diagrams

Superscript Electron Configurations

Noble Gas Notation — Ignore the part about electron dots!

Unit 5: The Periodic Law

Unit 6: Chemical Bonding

Determining Bond Type

Ionic Bonding Part 1

Covalent Bonding Part 1

Covalent Bonding Part 2

VSEPR Theory Part 1

Molecular Polarity

Intermolecular Forces

Unit 7a: Inorganic Nomenclature

Identifying Types of Compounds

Ionic Compounds Formula --> Name

Ionic Compounds - Name --> Formula

Naming Molecular Compounds

Unit 7b: Chemical Formulas

Molar Mass Conversions

Empirical and Molecular Formulas

Unit 8: Chemical Reactions

Balancing Equations

Types of Chemical Reactions

Single Replacement Reactions

Double Displacement Reactions

Unit 9: Stoichiometry

Introduction to Stoichiometry and Mole Ratios

2 and 3 Step Stoichiometry Problems

Unit 10: Gas Laws

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