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

2. Atoms & Elements

Law of Conservation of Mass

General Chemistry

2. Atoms & Elements

Law of Conservation of Mass

Previous problemNext problem

Struggling with General Chemistry?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which process is primarily responsible for removing carbon dioxide from the atmosphere according to the Law of Conservation of Mass?

Respiration

Combustion

Photosynthesis

Evaporation

Previous problemNext problem

Verified step by step guidance

Understand the Law of Conservation of Mass, which states that mass is neither created nor destroyed in a chemical reaction. This means that the amount of carbon dioxide removed from the atmosphere must be accounted for in the process.

Identify the processes listed: Respiration, Combustion, Photosynthesis, and Evaporation. Consider how each process interacts with carbon dioxide.

Respiration and Combustion both release carbon dioxide into the atmosphere, so they do not remove it.

Evaporation is a physical process involving the transition of water from liquid to gas, which does not involve carbon dioxide removal.

Photosynthesis is the process by which plants, algae, and some bacteria convert carbon dioxide and water into glucose and oxygen using sunlight. This process removes carbon dioxide from the atmosphere, aligning with the Law of Conservation of Mass.