Table of contents

1. Intro to General Chemistry3h 48m
2. Atoms & Elements4h 16m
3. Chemical Reactions4h 10m
4. BONUS: Lab Techniques and Procedures1h 38m
5. BONUS: Mathematical Operations and Functions48m
6. Chemical Quantities & Aqueous Reactions3h 53m
7. Gases3h 49m
8. Thermochemistry2h 37m
9. Quantum Mechanics2h 58m
10. Periodic Properties of the Elements3h 9m
11. Bonding & Molecular Structure3h 29m
12. Molecular Shapes & Valence Bond Theory1h 57m
13. Liquids, Solids & Intermolecular Forces2h 23m
14. Solutions3h 1m
15. Chemical Kinetics2h 53m
16. Chemical Equilibrium2h 29m
17. Acid and Base Equilibrium5h 1m
18. Aqueous Equilibrium4h 47m
19. Chemical Thermodynamics1h 50m
20. Electrochemistry2h 42m
21. Nuclear Chemistry2h 36m
22. Organic Chemistry5h 7m
23. Chemistry of the Nonmetals2h 39m
24. Transition Metals and Coordination Compounds3h 16m

3. Chemical Reactions

Combustion Analysis

General Chemistry

3. Chemical Reactions

Combustion Analysis

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Multiple Choice

During which process is water produced in a combustion analysis?

Photosynthesis

Combustion of hydrocarbons

Sublimation of dry ice

Electrolysis of water

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Verified step by step guidance

Understand the concept of combustion analysis: Combustion analysis is a method used to determine the elemental composition of a compound, typically involving the burning of a sample in the presence of oxygen.

Identify the components involved in combustion: In the combustion of hydrocarbons, the primary reactants are hydrocarbons (compounds made of hydrogen and carbon) and oxygen (O₂).

Recognize the products of hydrocarbon combustion: When hydrocarbons combust completely, they produce carbon dioxide (CO₂) and water (H₂O) as the main products.

Analyze the given options: Photosynthesis, sublimation of dry ice, and electrolysis of water do not involve the combustion of hydrocarbons. Photosynthesis is a process in plants that converts carbon dioxide and water into glucose and oxygen using sunlight. Sublimation of dry ice involves the transition of solid CO₂ to gaseous CO₂. Electrolysis of water involves the decomposition of water into hydrogen and oxygen gases.

Conclude that water is produced during the combustion of hydrocarbons, as it is a direct result of the chemical reaction between hydrocarbons and oxygen.