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 correctly describes the Lewis dot structure of neutral H2SiO?

Silicon is bonded to one hydrogen atom and two oxygen atoms, with no lone pairs on oxygen.

Silicon is bonded to two hydrogen atoms and one oxygen atom, with the oxygen atom having two lone pairs.

Silicon is bonded to two oxygen atoms and one hydrogen atom, with each oxygen atom having one lone pair.

Silicon is bonded to three hydrogen atoms, and oxygen is not directly bonded to silicon.

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Verified step by step guidance

Step 1: Identify the total number of valence electrons for each atom in H2SiO. Silicon (Si) has 4 valence electrons, hydrogen (H) has 1 valence electron each, and oxygen (O) has 6 valence electrons. Sum these to find the total valence electrons available for bonding.

Step 2: Determine the skeletal structure of the molecule. Since the formula is H2SiO, silicon is the central atom bonded to two hydrogens and one oxygen atom. This is because silicon typically forms four bonds, and hydrogen can only form one bond each.

Step 3: Draw single bonds between silicon and each hydrogen atom, and between silicon and the oxygen atom. Each single bond represents 2 electrons shared between atoms.

Step 4: Assign the remaining valence electrons as lone pairs to satisfy the octet rule, especially focusing on the oxygen atom. Oxygen typically has two lone pairs to complete its octet after bonding.

Step 5: Verify that silicon has a total of four bonds (counting bonds to hydrogens and oxygen) and that oxygen has two lone pairs, ensuring the Lewis structure represents a neutral molecule with all atoms having complete valence shells.