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Introduction to Chemistry: Key Concepts and Practice Questions

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Periodic Table: Element Symbols

  • Guided course
    Periodic Table: Symbols Concept
    04:01
  • Guided course
    Periodic Table: Symbols Example 1
    01:01

Electronic Structure

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    Electronic Structure Concept 2
    01:47
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    Electronic Structure Concept 1
    01:06
  • Guided course
    Electronic Structure Example 1
    00:44

Electronic Structure: Subshells

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    Electronic Structure: Subshells Example 1
    00:53
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    Electronic Structure: Subshells Concept 1
    01:06

Electronic Structure: Number of Electrons

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    Electronic Structure: Number of Electrons Example 1
    00:38
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    Electronic Structure: Number of Electrons Concept 1
    00:46

The Electron Configuration (Simplified)

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    The Electron Configuration (Simplified) Concept 4
    01:23
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    The Electron Configuration (Simplified) Concept 1
    02:15
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    The Electron Configuration (Simplified) Example 1
    00:50

The Electron Configuration: Condensed

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    The Electron Configuration: Condensed
    01:08
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    The Electron Configuration: Condensed Example 1
    01:28

Atomic Mass (Simplified)

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    Atomic Mass (Simplified) Concept 2
    01:51
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    Atomic Mass (Conceptual) Concept 1
    01:13
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    Atomic Mass (Conceptual) Example 1
    02:06

Mole Concept

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    Mole Concept
    02:41
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    Mole Concept Example 3
    01:41
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    Mole Concept Example 1
    01:28

Calculating Molar Mass

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    Calculating Molar Mass
    01:10
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    Calculating Molar Mass Example 1
    03:12

Mass Percent

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    Mass Percent Example
    01:21
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    Mass Percent Concept
    00:38

Molecular Formula

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    Molecular Formula Example 1
    05:03
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    Molecular Formula
    02:08

Chemical Reaction: Chemical Change

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    Chemical Reaction: Chemical Change Example 2
    01:24
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    Chemical Reaction: Chemical Change Example 1
    00:49
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    Chemical Reaction: Chemical Change Concept 2
    02:04

Balancing Chemical Equations (Simplified)

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    Balancing Chemical Equations (Simplified) Example 1
    04:21
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    Balancing Chemical Equations (Simplified) Concept 1
    01:32

Types of Chemical Reactions

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    Types of Chemical Reactions Example 1
    01:40
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    Types of Chemical Reactions Concept 1
    04:07

Stoichiometry

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    Stoichiometry
    01:16
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    Stoichiometry
    03:04
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    Stoichiometry Example 1
    05:53

Limiting Reagent

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    Limiting Reagent
    01:30
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    Limiting Reagent
    01:34

Ions and the Octet Rule

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    Ions and the Octet Rule Example 2
    01:54
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    Ions and the Octet Rule Concept 1
    02:59
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    Ions and the Octet Rule Concept 2
    01:04