Table of contents

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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

4. BONUS: Lab Techniques and Procedures

Experimental Error

General Chemistry

4. BONUS: Lab Techniques and Procedures

Experimental Error

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Multiple Choice

Which of the following statements best describes the role of variables in an experiment?

Variables are the results obtained from an experiment.

Variables are the hypotheses tested in an experiment.

Variables are factors that can be changed or controlled in an experiment.

Variables are the errors that occur during an experiment.

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Understand the definition of a variable in the context of scientific experiments. A variable is any factor, trait, or condition that can exist in differing amounts or types.

Identify the types of variables commonly found in experiments: independent variables, dependent variables, and controlled variables.

Independent variables are the ones that are changed or manipulated by the researcher to observe how they affect the dependent variables.

Dependent variables are the factors that are measured or observed in response to changes in the independent variables.

Controlled variables are the factors that are kept constant to ensure that the experiment is fair and that the results are due to the manipulation of the independent variable.