Table of contents

1. Matter and Measurements4h 31m
2. Atoms and the Periodic Table5h 23m
3. Ionic Compounds2h 18m
4. Molecular Compounds2h 18m
5. Classification & Balancing of Chemical Reactions3h 17m
6. Chemical Reactions & Quantities2h 27m
7. Energy, Rate and Equilibrium3h 46m
8. Gases, Liquids and Solids3h 25m
9. Solutions4h 10m
10. Acids and Bases3h 29m
11. Nuclear Chemistry56m
BONUS: Lab Techniques and Procedures1h 38m
BONUS: Mathematical Operations and Functions47m
12. Introduction to Organic Chemistry1h 34m
13. Alkenes, Alkynes, and Aromatic Compounds2h 12m
14. Compounds with Oxygen or Sulfur1h 6m
15. Aldehydes and Ketones1h 1m
16. Carboxylic Acids and Their Derivatives1h 11m
17. Amines39m
18. Amino Acids and Proteins1h 51m
19. Enzymes1h 37m
20. Carbohydrates1h 41m
21. The Generation of Biochemical Energy2h 8m
22. Carbohydrate Metabolism2h 22m
23. Lipids2h 26m
24. Lipid Metabolism1h 45m
25. Protein and Amino Acid Metabolism1h 37m
26. Nucleic Acids and Protein Synthesis2h 54m

5. Classification & Balancing of Chemical Reactions

Types of Chemical Reactions

GOB Chemistry

5. Classification & Balancing of Chemical Reactions

Types of Chemical Reactions

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2:50 minutes

Problem 83a

Textbook Question

Balance each of the following by adding coefficients, and identify the type of reaction for each:
a.

Verified step by step guidance

Step 1: Analyze the reactants and products in the image. The reactants include a red diatomic molecule (likely O₂), a blue single atom, and a purple diatomic molecule. The products consist of a red diatomic molecule, a blue single atom, and a purple diatomic molecule arranged in a different order.

Step 2: Write the unbalanced chemical equation based on the image. Represent the red diatomic molecule as R₂, the blue atom as B, and the purple diatomic molecule as P₂. The equation is: R₂ + B + P₂ → R₂ + B + P₂.

Step 3: Count the number of each type of atom on both sides of the equation. Ensure the number of red, blue, and purple atoms is equal on both sides.

Step 4: Add coefficients to balance the equation. Since the number of atoms is already equal on both sides, the equation is balanced as written: R₂ + B + P₂ → R₂ + B + P₂.

Step 5: Identify the type of reaction. This appears to be a rearrangement reaction, where the reactants are reorganized into the same products without any change in composition.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Balancing Chemical Equations

Balancing chemical equations involves ensuring that the number of atoms for each element is the same on both sides of the equation. This is achieved by adjusting coefficients in front of the chemical formulas. The law of conservation of mass dictates that matter cannot be created or destroyed in a chemical reaction, thus requiring balanced equations to accurately represent the reaction.

Types of Chemical Reactions

Chemical reactions can be classified into several types, including synthesis, decomposition, single replacement, and double replacement reactions. Each type has distinct characteristics; for example, synthesis reactions involve combining elements to form a compound, while decomposition reactions break down compounds into simpler substances. Identifying the type of reaction helps predict the products formed.

Molecular Representation

Molecular representation uses symbols and diagrams to depict the arrangement of atoms in a molecule. In the provided image, colored spheres represent different atoms, illustrating how they combine during a reaction. Understanding molecular representation is crucial for visualizing chemical interactions and predicting the outcomes of reactions based on the types and numbers of atoms involved.

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