Matter Matters
How many Particles are shown in the diagram?
5
Does the diagram show a pure substance or a mixture?
Pure substance
Does the diagram show an element, compound, or mixture?
Compound
Is AgNO3 an element, compound, or mixture?
Compound
Is Br2 an element, compound or mixture?
Element
What type of mixture is the picture showing?
Homogeneous mixture
What type of change is shown in the diagram?
Chemical change
How many different elements are in the chemical formula: AgNO3
3
How many atoms make up AgNO3
5
Which of the following options shows an element? (can be multiple correct answers)
A & B
Describe the definition of the word "Particle" as we have used it in class. Provide examples
Particle is the basic unit of matter. Particle can be a single element, molecule or compound.
Describe the difference between a chemical vs. physical change at the particle level. Use a diagram to support your answer.
List the 3 states of matter and describe how particles move (if at all) in all three phases. Use particle diagrams to support your answer.
Solids: particles vibrate in fixed location
Liquids: particles can slide against each other
Gas: particles move freely, filling up container.
Describe temperature and how it affects particles. Use particle diagrams to support your answer
Temperature is the average kinetic energy of particles. Higher the temperature, the more kinetic energy particles have and vice versa.
Describe how two particles can have same speed but different kinetic energies? Draw particle diagrams to support your answer.
Truck and car can have same speed but truck will have more kinetic energy due to it's mass because kinetic energy involves both mass and speed.
Using Particle diagrams, explain what would happen to a filled balloon taken from the fridge to a sauna. What causes this?
See Mr. Singh's Answer
Draw particle diagrams explaining the implosion of a can when heated on a flame and then immediately put into an ice bath. Explain your diagram.
See Mr. Singh's Response
Draw Particle diagrams of H (lighter particle) and O(heavier particle) traveling at the same speed. Do both have the same kinetic energy? Explain.
See. Mr. Singh's Response
Describe how temperature, volume, and pressure of gases are related to each other. Give examples.
Temperature & Pressure directly related under constant volume
Pressure & Volume indirectly related under constant temperature.
Describe how two particles can have the same kinetic energy but different speeds. Use particle diagrams to support your answer.
At the same temperature, all particles have same average kinetic energy. For this to work, lighter particles need to move faster and heavier need to move slower.