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Molarity
Preparing a solution
Dilution
Solubility rules
Complete & Net Ionic Equations
Colligative properties
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Heat Flow
Energy diagrams
Thermochemical equations
Heating/ Cooling curves
Specific Heat Capacity
Calorimetry
Hess's Law
Enthalpies of formation
Bond enthalpies
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Collision Theory
Rate Comparisons
Integrated Rate Law
Differential Rate Law
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Equilibrium
Equilibrium Expression
ICE Tables
Calculating K
K vs Q
Le Chatelier's Principle
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Definitions
Conjugate Acids & Base Pairs
Autoionization of water
pH Scale
Strong Acids/ Bases
Ka and Kb
Buffer
Titrations
Indicators
pH salts
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Entropy
Gibb's Free Energy
G and Temperature
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Oxidation numbers
Half Reactions
Balancing Redox reactions
Voltaic cells
Cell potential (standard conditions)
Cell potential (non-standard)
Electrolysis
Quantitative Electrochemistry
Balancing Chemical Equations
Related Examples and Practice Problems
Additional Worked Out Examples/ Practice
Identifying classification types: Differentiation between elements, compounds or mixtures and homogeneous and heterogenous mixtures
Separation techniques: Selected and explaining limitation of appropriate separation
Relating Properties to Composition: Predicting classification based on descriptive properties
and more …
Topic Summary & Highlights
and Help Videos
Core Concept
Balancing chemical equations is essential for understanding reactions because it ensures that the law of conservation of mass is satisfied — the total number of atoms for each element must be the same on both sides of the equation.
Why Balance Chemical Equations?
In a chemical reaction, atoms are neither created nor destroyed; they are simply rearranged. Balancing an equation ensures that each atom in the reactants has a corresponding atom in the products.
Key Tips
Only Adjust Coefficients: Never change subscripts in a chemical formula to balance an equation, as this changes the substance.
Start with Elements in a Single Compound: Begin by balancing elements that appear in only one reactant and one product to simplify the process.
Check for the Lowest Whole-Number Coefficients: If all coefficients can be divided by a common factor, simplify them.
Polyatomic Ions as Units: If a polyatomic ion appears unchanged on both sides, treat it as a single unit to balance it more easily.
