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1. Matter and Measurements(0)

What is Chemistry?
(0)

The Scientific Method
(0)

Classification of Matter
(0)

States of Matter
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Physical & Chemical Changes
(0)

Chemical Properties
(0)

Physical Properties
(0)

Intensive vs. Extensive Properties
(0)

Temperature (Simplified)
(0)

Scientific Notation
(0)

SI Units (Simplified)
(0)

Metric Prefixes
(0)

Significant Figures (Simplified)
(0)

Significant Figures: Precision in Measurements
(0)

Significant Figures: In Calculations
(0)

Conversion Factors (Simplified)
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Dimensional Analysis
(0)

Density
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Specific Gravity
(0)

Density of Geometric Objects
(0)

Density of Non-Geometric Objects
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2. Atoms and the Periodic Table(0)

The Atom (Simplified)
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Subatomic Particles (Simplified)
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Isotopes
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Ions (Simplified)
(0)

Atomic Mass (Simplified)
(0)

Atomic Mass (Conceptual)
(0)

Periodic Table: Element Symbols
(0)

Periodic Table: Classifications
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Periodic Table: Group Names
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Periodic Table: Representative Elements & Transition Metals
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Periodic Table: Elemental Forms (Simplified)
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Periodic Table: Phases (Simplified)
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Law of Definite Proportions
(0)

Atomic Theory
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Rutherford Gold Foil Experiment
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Wavelength and Frequency (Simplified)
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Electromagnetic Spectrum (Simplified)
(0)

Bohr Model (Simplified)
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Emission Spectrum (Simplified)
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Electronic Structure
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Electronic Structure: Shells
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Electronic Structure: Subshells
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Electronic Structure: Orbitals
(0)

Electronic Structure: Electron Spin
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Electronic Structure: Number of Electrons
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The Electron Configuration (Simplified)
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Electron Arrangements
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The Electron Configuration: Condensed
(0)

The Electron Configuration: Exceptions (Simplified)
(0)

Ions and the Octet Rule
(0)

Ions and the Octet Rule (Simplified)
(0)

Valence Electrons of Elements (Simplified)
(0)

Lewis Dot Symbols (Simplified)
(0)

Periodic Trend: Metallic Character
(0)

Periodic Trend: Atomic Radius (Simplified)
(0)

3. Ionic Compounds(0)

Periodic Table: Main Group Element Charges
(0)

Periodic Table: Transition Metal Charges
(0)

Periodic Trend: Ionic Radius (Simplified)
(0)

Periodic Trend: Ranking Ionic Radii
(0)

Periodic Trend: Ionization Energy (Simplified)
(0)

Periodic Trend: Electron Affinity (Simplified)
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Ionic Bonding
(0)

Naming Monoatomic Cations
(0)

Naming Monoatomic Anions
(0)

Polyatomic Ions
(0)

Naming Ionic Compounds
(0)

Writing Formula Units of Ionic Compounds
(0)

Naming Ionic Hydrates
(0)

Naming Acids
(0)

4. Molecular Compounds(0)

Covalent Bonds
(0)

Naming Binary Molecular Compounds
(0)

Molecular Models
(0)

Bonding Preferences
(0)

Lewis Dot Structures: Neutral Compounds (Simplified)
(0)

Multiple Bonds
(0)

Multiple Bonds (Simplified)
(0)

Lewis Dot Structures: Multiple Bonds
(0)

Lewis Dot Structures: Ions (Simplified)
(0)

Lewis Dot Structures: Exceptions (Simplified)
(0)

Resonance Structures (Simplified)
(0)

Valence Shell Electron Pair Repulsion Theory (Simplified)
(0)

Electron Geometry (Simplified)
(0)

Molecular Geometry (Simplified)
(0)

Bond Angles (Simplified)
(0)

Dipole Moment (Simplified)
(0)

Molecular Polarity (Simplified)
(0)

5. Classification & Balancing of Chemical Reactions(0)

Chemical Reaction: Chemical Change
(0)

Law of Conservation of Mass
(0)

Balancing Chemical Equations (Simplified)
(0)

Solubility Rules
(0)

Molecular Equations
(0)

Types of Chemical Reactions
(0)

Complete Ionic Equations
(0)

Calculate Oxidation Numbers
(0)

Redox Reactions
(0)

Spontaneous Redox Reactions
(0)

Balancing Redox Reactions: Acidic Solutions
(0)

Balancing Redox Reactions: Basic Solutions
(0)

Balancing Redox Reactions (Simplified)
(0)

Galvanic Cell (Simplified)
(0)

6. Chemical Reactions & Quantities(0)

Empirical Formula
(0)

Molecular Formula
(0)

Calculating Molar Mass
(0)

Mole Concept
(0)

Mass Percent
(0)

Stoichiometry
(0)

Limiting Reagent
(0)

Percent Yield
(0)

7. Energy, Rate and Equilibrium(0)

Nature of Energy
(0)

First Law of Thermodynamics
(0)

Endothermic & Exothermic Reactions
(0)

Bond Energy
(0)

Thermochemical Equations
(0)

Heat Capacity
(0)

Thermal Equilibrium (Simplified)
(0)

Hess's Law
(0)

Rate of Reaction
(0)

Energy Diagrams
(0)

Chemical Equilibrium
(0)

The Equilibrium Constant
(0)

Le Chatelier's Principle
(0)

Solubility Product Constant (Ksp)
(0)

Spontaneous vs Nonspontaneous Reactions
(0)

Entropy (Simplified)
(0)

Gibbs Free Energy (Simplified)
(0)

8. Gases, Liquids and Solids(0)

Pressure Units
(0)

Kinetic Molecular Theory
(0)

The Ideal Gas Law
(0)

The Ideal Gas Law Derivations
(0)

The Ideal Gas Law Applications
(0)

Chemistry Gas Laws
(0)

Chemistry Gas Laws: Combined Gas Law
(0)

Standard Temperature and Pressure
(0)

Dalton's Law: Partial Pressure (Simplified)
(0)

Gas Stoichiometry
(0)

Intermolecular Forces (Simplified)
(0)

Intermolecular Forces and Physical Properties
(0)

Atomic, Ionic and Molecular Solids
(0)

Heating and Cooling Curves
(0)

9. Solutions(0)

Solutions
(0)

Solubility and Intermolecular Forces
(0)

Solutions: Mass Percent
(0)

Percent Concentrations
(0)

Molarity
(0)

Osmolarity
(0)

Parts per Million (ppm)
(0)

Solubility: Temperature Effect
(0)

Intro to Henry's Law
(0)

Henry's Law Calculations
(0)

Dilutions
(0)

Solution Stoichiometry
(0)

Electrolytes (Simplified)
(0)

Equivalents
(0)

Molality
(0)

The Colligative Properties
(0)

Boiling Point Elevation
(0)

Freezing Point Depression
(0)

Osmosis
(0)

Osmotic Pressure
(0)

Vapor Pressure Lowering (Raoult's Law)
(0)

10. Acids and Bases(0)

Acid-Base Introduction
(0)

Arrhenius Acid and Base
(0)

Bronsted Lowry Acid and Base
(0)

Acid and Base Strength
(0)

Ka and Kb
(0)

The pH Scale
(0)

Auto-Ionization
(0)

pH of Strong Acids and Bases
(0)

Acid-Base Equivalents
(0)

Acid-Base Reactions
(0)

Gas Evolution Equations (Simplified)
(0)

Ionic Salts (Simplified)
(0)

Buffers
(0)

Henderson-Hasselbalch Equation
(0)

Strong Acid Strong Base Titrations (Simplified)
(0)

11. Nuclear Chemistry(0)

Types of Radiation
(0)

Alpha Decay
(0)

Beta Decay
(0)

Gamma Emission
(0)

Electron Capture
(0)

Positron Emission
(0)

Radioactive Half-Life
(0)

Measuring Radioactivity
(0)

BONUS: Lab Techniques and Procedures(0)

Laboratory Materials
(0)

Experimental Error
(0)

Distillation & Floatation
(0)

Chromatography
(0)

Filtration and Evaporation
(0)

Extraction
(0)

Test for Ions and Gases
(0)

BONUS: Mathematical Operations and Functions(0)

Multiplication and Division Operations
(0)

Addition and Subtraction Operations
(0)

Power and Root Functions
(0)

Power and Root Functions
(0)

The Quadratic Formula
(0)

12. Introduction to Organic Chemistry(0)

Introduction to Organic Chemistry
(0)

Structural Formula
(0)

Condensed Formula
(0)

Skeletal Formula
(0)

Functional Groups in Chemistry
(0)

Naming Alkanes
(0)

The Alkyl Groups
(0)

Naming Alkanes with Substituents
(0)

Naming Cyclic Alkanes
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Naming Other Substituents
(0)

Alkane Reactions
(0)

13. Alkenes, Alkynes, and Aromatic Compounds(0)

Spatial Orientation of Bonds
(0)

Intro to Hydrocarbons
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Isomers
(0)

Chirality
(0)

Naming Alkenes
(0)

Naming Alkynes
(0)

Intro to Addition Reactions
(0)

Halogenation Reaction
(0)

Hydrogenation Reaction
(0)

Hydrohalogenation Reaction
(0)

Hydration Reaction
(0)

Naming Benzene
(0)

Benzene Reactions
(0)

14. Compounds with Oxygen or Sulfur(0)

Naming Alcohols
(0)

Naming Ethers
(0)

Naming Thiols
(0)

Alcohol Reactions: Dehydration Reactions
(0)

Intro to Redox Reactions
(0)

Alcohol Reactions: Oxidation Reactions
(0)

Reactions of Thiols
(0)

15. Aldehydes and Ketones(0)

Naming Ketones
(0)

Naming Aldehydes
(0)

Tollens' and Benedict's Test
(0)

Reduction of Aldehydes and Ketones
(0)

Hemiacetal and Acetal Formation
(0)

16. Carboxylic Acids and Their Derivatives(0)

Naming Carboxylic Acids
(0)

Naming Esters
(0)

Naming Amides
(0)

Carboxylic Acid Reactions
(0)

Ester Reactions: Esterification
(0)

Ester Reactions: Acid-Catalyzed Hydrolysis
(0)

Ester Reactions: Saponification
(0)

Amide Formation
(0)

Amide Hydrolysis
(0)

17. Amines(0)

Classifying Amines
(0)

Naming Amines
(0)

Naming Ammonium Salts
(0)

Functional Group Priorities
(0)

Amine Reactions
(0)

18. Amino Acids and Proteins(0)

Intro to Amino Acids
(0)

Amino Acid Three Letter Codes
(0)

Amino Acid One Letter Codes
(0)

Amino Acid Classifications
(0)

Peptides
(0)

Primary Protein Structure
(0)

Secondary Protein Structure
(0)

Tertiary Protein Structure
(0)

Quaternary Protein Structure
(0)

Summary of Protein Structure
(0)

19. Enzymes(0)

Intro to Enzymes
(0)

Enzyme Classification
(0)

Enzyme-Substrate Complex
(0)

Models of Enzyme Action
(0)

Factors Affecting Enzyme Activity
(0)

Enzyme Inhibition
(0)

Enzyme Regulation: Allosteric Control
(0)

Enzyme Regulation: Feedback Control
(0)

Enzyme Regulation: Covalent Modification
(0)

20. Carbohydrates(0)

Intro to Carbohydrates
(0)

Classification of Carbohydrates
(0)

Fischer Projections
(0)

Enantiomers vs Diastereomers
(0)

D vs L Enantiomers
(0)

Cyclic Hemiacetals
(0)

Intro to Haworth Projections
(0)

Cyclic Structures of Monosaccharides
(0)

Mutarotation
(0)

Reduction of Monosaccharides
(0)

Oxidation of Monosaccharides
(0)

Glycosidic Linkage
(0)

Disaccharides
(0)

Polysaccharides
(0)

21. The Generation of Biochemical Energy(0)

Intro to Metabolism
(0)

ATP and Energy
(0)

Intro to Cofactors
(0)

Intro to Coenzymes
(0)

Coenzymes in Metabolism
(0)

Energy Production In Biochemical Pathways
(0)

Intro to Citric Acid Cycle
(0)

The Citric Acid Cycle
(0)

Electron Transport Chain
(0)

Oxidative Phosphorylation
(0)

Aerobic Respiration Summary
(0)

22. Carbohydrate Metabolism(0)

Intro to Carbohydrate Metabolism
(0)

Intro to Glycolysis
(0)

Glycolysis
(0)

Glycolysis Summary
(0)

Pyruvate Oxidation
(0)

Anaerobic Respiration
(0)

Total Energy from Glucose
(0)

Intro to Gluconeogenesis
(0)

Gluconeogenesis
(0)

23. Lipids(0)

Intro to Lipids
(0)

Fatty Acids
(0)

Physical Properties of Fatty Acids
(0)

Waxes
(0)

Triacylglycerols
(0)

Triacylglycerol Reactions: Hydrogenation
(0)

Triacylglycerol Reactions: Hydrolysis
(0)

Triacylglycerol Reactions: Oxidation
(0)

Glycerophospholipids
(0)

Sphingomyelins
(0)

Steroids
(0)

Cell Membranes
(0)

Membrane Transport
(0)

24. Lipid Metabolism(0)

Intro to Lipid Digestion
(0)

Digestion of Lipids
(0)

Lipoproteins for Transport
(0)

Glycerol Metabolism
(0)

Intro to Fatty Acid Oxidation
(0)

Oxidation of Fatty Acids
(0)

Total Energy from Fatty Acids
(0)

Ketone Bodies
(0)

Summary of Lipid Metabolism
(0)

25. Protein and Amino Acid Metabolism(0)

Digestion of Proteins
(0)

Intro to Amino Acid Catabolism
(0)

Amino Acid Catabolism: Amino Group
(0)

Amino Acid Catabolism: Carbon Atoms
(0)

Intro to Urea Cycle
(0)

The Urea Cycle
(0)

Review of Metabolism
(0)

26. Nucleic Acids and Protein Synthesis(0)

Intro to Nucleic Acids
(0)

Nitrogenous Bases
(0)

Nucleoside and Nucleotide Formation
(0)

Naming Nucleosides and Nucleotides
(0)

Phosphodiester Bond Formation
(0)

Primary Structure of Nucleic Acids
(0)

Base Pairing
(0)

DNA Double Helix
(0)

Intro to DNA Replication
(0)

Steps of DNA Replication
(0)

Types of RNA
(0)

Overview of Protein Synthesis
(0)

Transcription: mRNA Synthesis
(0)

Processing of pre-mRNA
(0)

The Genetic Code
(0)

Introduction to Translation
(0)

Translation: Protein Synthesis
(0)

7. Energy, Rate and Equilibrium

Thermal Equilibrium (Simplified)

7. Energy, Rate and Equilibrium

Thermal Equilibrium (Simplified): Videos & Practice Problems

Video Lessons Practice Worksheet

Thermal Equilibrium (Simplified) Practice Problems

19 problems

Problem 1Multiple Choice

A sample of an alloy weighing 65.00 g with a temperature of 90.00°C is dropped into 120.0 g of water at 25.00°C. The final temperature of both the alloy and the water is 40.00°C. Calculate the specific heat capacity of the alloy if the specific heat of water is 4.184 J/(g•°C).

Problem 2Multiple Choice

What is the definition of thermal equilibrium?

Problem 3Multiple Choice

What happens during the process of heat transfer between a hotter object and a colder object?

Problem 4Multiple Choice

Two substances, A and B, have masses of 2 kg and 3 kg, and initial temperatures of 60°C and 40°C, respectively. If their specific heats are equal, what is their final temperature when they reach thermal equilibrium?

Problem 5Multiple Choice

In a thermal transfer scenario, if q for object A is negative, what does this indicate about the object?

Problem 6Multiple Choice

If 150 J of heat is lost by object X in a closed system, how much heat is gained by object Y?

Problem 7Multiple Choice

What is the formula used to calculate the heat exchanged between two objects?

Problem 8Multiple Choice

Under ideal conditions, where does heat transfer occur when a hot object is immersed in a solvent?

Problem 9Multiple Choice

What is the implication of thermal equilibrium on the temperature of two interacting substances?

Problem 10Multiple Choice

In a real-world scenario where a hot metal rod is placed in cold water, what factors affect the heat exchange process until thermal equilibrium is reached?

Problem 11Multiple Choice

Under what condition does thermal equilibrium occur between two substances?

Problem 12Multiple Choice

A 100g piece of copper at 90°C is placed in 250g of water at 20°C. Assuming no heat is lost to the surroundings and the specific heat of copper is 0.385 J/g°C, calculate the final temperature of the system.

Problem 13Multiple Choice

Why is it important to consider the sign of q when analyzing heat transfer between two objects?

Problem 14Multiple Choice

How does achieving thermal equilibrium affect the energy distribution in a system of interacting substances?

Problem 15Multiple Choice

What does each symbol represent in the formula q = mcΔT?

Problem 16Multiple Choice

What principle explains why the heat lost by one substance equals the heat gained by another in a closed system?

Problem 17Multiple Choice

In an insulated coffee cup, a hot coffee is mixed with cold milk. What factors determine the final temperature of the mixture?

Problem 18Multiple Choice

Why is it assumed that heat transfer occurs only between the solvent and the immersed object in ideal conditions?

Problem 19Multiple Choice

A 150g sample of metal at 100°C is placed in 200g of water at 25°C in a perfectly insulated container. If the final temperature of the system is 30°C, what is the specific heat capacity of the metal? (specific heat of water = 4.18 J/g°C)

Heat Capacity Practice Problems Hess's Law Practice Problems

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