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

11. Bonding & Molecular Structure

Lewis Dot Structures: Neutral Compounds

General Chemistry

11. Bonding & Molecular Structure

Lewis Dot Structures: Neutral Compounds

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Multiple Choice

Which of the following statements about covalent Lewis dot structures for neutral molecules is correct?

All atoms in a neutral covalent molecule must have a complete octet in their Lewis structure, except for hydrogen.

Neutral covalent molecules always contain at least one atom with an incomplete octet.

Lewis dot structures for neutral molecules never include lone pairs of electrons.

In neutral covalent molecules, only double bonds are allowed in Lewis structures.

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Verified step by step guidance

Understand the octet rule: Most atoms in neutral covalent molecules tend to have eight electrons in their valence shell to achieve stability, except hydrogen, which only needs two electrons.

Analyze the first statement: "All atoms in a neutral covalent molecule must have a complete octet in their Lewis structure, except for hydrogen." This aligns with the octet rule and is generally true for many neutral molecules.

Evaluate the second statement: "Neutral covalent molecules always contain at least one atom with an incomplete octet." This is not always true because many neutral molecules have all atoms with complete octets (except hydrogen).

Consider the third statement: "Lewis dot structures for neutral molecules never include lone pairs of electrons." This is incorrect because lone pairs are often present in Lewis structures to complete octets or represent nonbonding electrons.

Review the fourth statement: "In neutral covalent molecules, only double bonds are allowed in Lewis structures." This is false since single, double, and even triple bonds can appear in Lewis structures depending on the molecule.