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

The Atom

General Chemistry

2. Atoms & Elements

The Atom

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Multiple Choice

Which of the following statements correctly defines a molecule?

A molecule is a mixture of different elements that are not chemically bonded.

A molecule is a charged particle formed when an atom gains or loses electrons.

A molecule is a single atom that can exist independently and retain the properties of an element.

A molecule is a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.

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Verified step by step guidance

Understand the definition of a molecule: A molecule is a group of two or more atoms that are chemically bonded together. These atoms can be of the same element or different elements.

Differentiate between a molecule and other chemical entities: Unlike mixtures, molecules involve chemical bonds between atoms. Unlike ions, molecules are not charged particles.

Recognize that a molecule is not a single atom: A single atom is an element, not a molecule. Molecules consist of multiple atoms bonded together.

Identify the role of molecules in chemical reactions: Molecules are the smallest units of a chemical compound that can participate in chemical reactions, maintaining the compound's properties.

Select the correct statement: Based on the understanding of what a molecule is, choose the statement that accurately describes a molecule as a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound.