Podcast
Questions and Answers
Which of the following changes is identified as a chemical change?
Which of the following changes is identified as a chemical change?
What property is indicated by the ability of a substance to catch fire?
What property is indicated by the ability of a substance to catch fire?
Which of the following is a physical property of a substance?
Which of the following is a physical property of a substance?
How can density be expressed mathematically?
How can density be expressed mathematically?
Signup and view all the answers
What distinguishes a phase change from a chemical change?
What distinguishes a phase change from a chemical change?
Signup and view all the answers
Which model of atomic structure was improved by the introduction of the quantum model?
Which model of atomic structure was improved by the introduction of the quantum model?
Signup and view all the answers
Which of the following indicates a physical change when a substance is subjected to it?
Which of the following indicates a physical change when a substance is subjected to it?
Signup and view all the answers
Which liquid has the highest density based on the given measurements?
Which liquid has the highest density based on the given measurements?
Signup and view all the answers
Which of the following processes is NOT typically a chemical change?
Which of the following processes is NOT typically a chemical change?
Signup and view all the answers
What best describes how the Quantum Model differs from the earlier models of atomic structure?
What best describes how the Quantum Model differs from the earlier models of atomic structure?
Signup and view all the answers
Study Notes
Chemistry Final Review
-
AKS 2a: Plan and carry out an investigation about physical and chemical properties at the macroscopic scale.
- Identify the following as chemical or physical change:
- Colorado River eroding rocks (Grand Canyon): Physical
- Spoiled meat: Chemical
- Snow melting: Physical
- Mixing cinnamon and sugar: Physical
- Identify the following as chemical or physical change:
-
AKS 2b: Use mathematics, computational, and conceptual thinking to calculate density.
- Density: Mass per unit volume (D=M/V)
-
Physical vs. Chemical Changes/Properties
- Freezing: Physical
- Dissolving in water: Physical
- Flammability: Chemical
- Tarnishing of silver: Chemical
- Luster/Shine: Physical
- Density: Physical
- Conductivity: Physical
- Making an alloy: Physical
-
Phase Changes:
- Phase changes are physical changes
Atomic Models
- Plum Pudding Model: Added electrons and positive charge.
- Nuclear Model: Added empty space and a positive central nucleus.
- Planetary Model: Organized electrons in orbitals/shells.
- Quantum Model (Modern-day electron cloud model): Shows electrons do not move in fixed shells.
Physical Properties/Measurement
- Ways to determine physical properties: Measure density, mass, volume, conductivity, etc.
- Chemical Properties: flammability and reactivity
Density of Liquids
- Mercury: 13.6 g/mL
- Water: 1.02 g/mL
- Ethyl alcohol: 0.79 g/mL
- Water: 1.00 g/mL
- Gasoline: 0.7 g/mL
- Chloroform: 1.49 g/mL
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Prepare for your Chemistry final with this comprehensive review quiz. Test your understanding of physical and chemical changes, density calculations, and atomic models. This quiz covers essential concepts that are crucial for mastering chemistry.
