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

6. Chemical Quantities & Aqueous Reactions

Solubility Rules

General Chemistry

6. Chemical Quantities & Aqueous Reactions

Solubility Rules

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Multiple Choice

What happens to the ionic compound NaCl when it is placed in water?

NaCl dissociates into Na+ and Cl- ions.

NaCl forms a precipitate at the bottom of the container.

NaCl remains as a solid and does not dissolve.

NaCl reacts with water to form NaOH and HCl.

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Verified step by step guidance

Understand the nature of ionic compounds: Ionic compounds like NaCl are composed of positive and negative ions held together by ionic bonds.

Consider the properties of water: Water is a polar solvent, meaning it has a partial positive charge on one side and a partial negative charge on the other, which can interact with ionic compounds.

Analyze the process of dissociation: When NaCl is placed in water, the polar water molecules surround the Na+ and Cl- ions, weakening the ionic bonds and allowing the compound to dissociate into its constituent ions.

Recognize the result of dissociation: The Na+ ions are surrounded by the partially negative oxygen atoms of water, while the Cl- ions are surrounded by the partially positive hydrogen atoms, leading to the dissolution of NaCl.

Evaluate the incorrect options: NaCl does not form a precipitate, remain as a solid, or react with water to form NaOH and HCl, as these processes do not occur under normal conditions when NaCl is dissolved in water.