Previous Unit
Unit 3 – Covalent Bonding Archive Page
Monday, January 5, 2026
In this class we will start the semester by reviewing the basics of chemistry and the structure of the class overall.
Introduction to Chemistry and Course Policies
Tuesday, January 6, 2026
In this class we will start Unit 4 by introducing heat and energy in the concept of chemistry.
Heat and Energy Introduction
Comparing Kinetic and Potential Energy
Assignment Due Thursday, January 8, 2026
Late Assignment Due Date Tuesday, January 13, 2026
Google Classroom Assignment
Wednesday, January 7, 2026
In this class we will continue our look at energy focusing on the transfer of energy both in collisions and through exo and endothermic processes.
Energy Transfer
Energy Transfer Examples
Assignment Due Friday, January 9, 2025
Late Assignment Due Wednesday, January 14, 2026
Google Classroom Assignment
Analyzing Heat Flow Examples
Thursday, January 8, 2026
In this class we will continue our look at energy focusing on the energy of both states of matter and both ionic and covalent bonding.
Energy in chemical systems
Comparing ionic and covalent bond energies
Assignment Due Monday, January 12, 2026
Late Assignment Due Thursday, January 15, 2026
Google Classroom Assignment
Friday, January 9, 2026
In this class we will finish up our introductory look at energy in chemistry by focusing on the other types of energy common in science.
Types of Energy in Science
Assignment Due Tuesday, January 13, 2026
Late Assignment Due Friday, January 16, 2026
Google Classroom Assignment
Monday, January 12, 2026
In this class we will begin our look at chemical reactions, focusing on the basic structure of a chemical reaction, including states of matter and energy production.
Introduction and Parts of a Chemical Reaction
Parts and Examples of Chemical Reactions
Assignment Due Wednesday, January 14, 2025
Late Assignment Due Tuesday, January 20, 2025
Google Classroom Assignment
Tuesday, January 13, 2026
In this class we will begin our first chemical reaction, the combination reaction. We will review the basics of ionic compounds and using the cross method for ionic compound formulas.
Combination Reaction with Representative Metals
Combination Reaction Examples (Part 1)
Assignment Due Thursday, January 15, 2026
Late Assignment Due Tuesday, January 20, 2026
Selected Answers from Assignment 4F
Wednesday, January 14, 2026
In this class we will continue our discussion on combination reactions by focusing on combo reactions involving polyatomic ions.
Combination Reactions with Polyatomic Ions
Combination Reaction Examples
Assignment Due Friday, January 16, 2026
Late Assignment Due Date Wednesday, January 21, 2026
Combination Reactions with Polyatomic Ions
Thursday, January 15, 2026
In this class we will continue our discussion on chemical reactions by focusing on decomposition reactions, the opposite of combo reactions.
Decomposition Reactions
Decomposition Reaction Examples
Assignment Due Tuesday, January 20, 2026
Late Assignment Due Date Thursday, January 22, 2026
Decomposition Reactions
Friday, January 16, 2026
In this class we will continue our discussion on chemical reactions by comparing the format of combination and decomposition reactions.
Analyzing Chemical Reactions
Combo and Decomp Reactions with Positive Polyatomic Ions
Assignment Due Wednesday, January 21, 2026
Late Assignment Due Date Friday, January 23, 2026
Tuesday, January 20, 2026
In this class we will continue our look at chemical reactions by focusing on the single replacement reaction and the activity series of elements.
Single Replacement Reactions and Activity Series
Single Replacement Reaction Examples
Assignment Due Thursday, January 22, 2026
Late Assignment Due Date Tuesday, January 27, 2026
Single Replacement Reactions with Representative Elements
Wednesday, January 21, 2026
In this class we will continue our look at chemical reactions, this time looking at charges of transition metals and polyatomic ions, and using those charges in single replacement reactions.
Single Replacement Reactions and Determining Ion Charges
Single Replacement Reaction Examples
Assignment Due Friday, January 23, 2026
Late Assignment Due Date Wednesday, January 28, 2026
Single Replacement Reactions with Polyatomic Ions + Identifying Charges
Thursday, January 22, 2026
In this class we will finish the introduction of single replacement reactions, focusing on the breakdown of ionic compounds into individual atoms and vice versa.
Breakdown of Ions and Ionic Compounds
Identifying Parts of an Ionic Compound for Chemical Reactions
Friday, January 23, 2026
In this class we will move to our last major chemical reaction, the double replacement reaction, including the acid base reaction. In the first part we will focus on the basic reactions with representative elements only.
Introduction to Double Replacement Reactions
Double Replacement Reaction Process and Examples
Assignment Due Wednesday, January 28, 2026
Late Assignment Due Date Friday, January 30, 2026
Binary Compound Double Replacement Reactions
Monday, January 26, 2026
In this class we will continue our work from Friday, focusing on completing double replacement reactions. The notes include examples of various binary compound double replacement reactions.
Double Replacement Reactions Examples
Binary Compound Double Replacement Reaction Examples
Tuesday, January 27, 2026
In this class we will continue our work on double replacement reactions, focusing on finding the products of double replacement reactions with polyatomic ions.
Adding Polyatomic Ions to Double Replacement Reactions
Double Replacement Reaction Examples with Polyatomic Ions
Assignment Due Thursday, January 29, 2026
Late Assignment Due Date Tuesday, February 3, 2026
Double Replacement Reactions w/Polyatomic Ions
Wednesday, January 28, 2026
In this class we will finish our look at chemical reaction formulas by looking at combustion, a reaction producing smaller more energetic products from larger organic molecules.
Complete and Incomplete Combustion Reactions
Combustion Reaction Breakdown
Assignment Due Friday, January 30, 2026
Last Assignment Due Date Wednesday, February 4, 2026
Thursday – Friday, January 29 – 30, 2026
In this class we will start the final part of chemical reactions, the balancing of reactions. In part 1 we will focus on what a balanced reaction is, and how to balance basic reactions including combination and decomposition reactions.
Introduction to Conservation of Mass in Reactions
Balancing Examples for Combination and Decomposition Reactions
Assignment Due Tuesday, February 3, 2026
Last Assignment Due Date Thursday, February 5, 2026
Solved Problems from Assignment 4O
Monday, February 2, 2026
In this class we will continue our look at chemical balancing, focusing on the inclusion of single replacement reactions to our basic balancing methods.
Balancing Single Replacement Reactions
Balancing Single Replacement Reaction Examples
Assignment Due Thursday, February 5, 2026
Last Assignment Due Date Tuesday, February 10, 2026
Chemical Reaction Balancing, Combo, Decomp, and Single Replacement
Tuesday – Wednesday, February 3 – 4, 2026
In this class we will continue our look at chemical balancing, focusing on the inclusion of double replacement reactions to our basic balancing methods.
Balancing Double Replacement Reactions
Balancing Double Replacement Reaction Examples
Assignment Due Thursday, February 5, 2026
Last Assignment Due Date Wednesday, February 11, 2026
Balancing Double Replacement Reactions
Thursday – Friday, February 5 – 6, 2026
In this class we will start the wrap up of Unit 4 looking at the combination of balancing and writing chemical reactions with representative elements.
Combining Writing and Balancing Chemical Reactions
Writing and Balancing Chemical Reactions Examples (Combination and Single Replacement Reactions)
Chart of Ratios used in Balancing Chemical Reactions
Assignment Due Wednesday, February 11, 2026
Last Assignment Due Date Thursday, February 12, 2026
Assignment Due Wednesday, February 11, 2026
Last Assignment Due Date Thursday, February 12, 2026
Writing and Balancing Chemical Reactions
Tuesday – Wednesday, February 10 – 11, 2026
In these two classes we will wrap up unit 4 by reviewing balancing and writing chemical reactions, along with the overall unit review.
Main topics from the Unit 4 Review (Part 1 – Energy and Bonding)
Main topics from the Unit 4 Review (Part 2 – Chemical Reactions)
Assignment Due Thursday, February 12, 2026
Late Assignment Due Date Thursday, February 12, 2026
Solved problems from Assignment 4T
Ms. Swager's Science Classroom Website 