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

1. Intro to General Chemistry

Classification of Matter

General Chemistry

1. Intro to General Chemistry

Classification of Matter

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Multiple Choice

What percentage of Earth's water is salt water?

85%

50%

97%

70%

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Verified step by step guidance

Understand the composition of Earth's water: Earth's water is divided into salt water and fresh water. Salt water is primarily found in oceans and seas, while fresh water is found in rivers, lakes, and glaciers.

Identify the percentage of salt water: According to scientific data, approximately 97% of Earth's water is salt water. This means that the vast majority of water on Earth is not suitable for drinking without desalination.

Consider the distribution of fresh water: The remaining 3% of Earth's water is fresh water, which is found in glaciers, ice caps, groundwater, and surface water bodies like rivers and lakes.

Reflect on the implications: The high percentage of salt water highlights the importance of managing fresh water resources carefully, as they are limited compared to the vast amount of salt water.

Review the options given: Among the options provided (85%, 50%, 97%, 70%), the correct answer is 97%, which aligns with the scientific understanding of Earth's water distribution.