D=M/V
Physical/Chemical change
Phase Changes
Points on the Graph
States of Matter
100
The density of a block of stone with a mass of 200g and a volume of 10 cm3.
What is 20 grams per cubic centimeter?
100
You activate an Glow stick (Chem-Light) and it gives off light.
What is a Chemical change?
100
Condensation
What is the process of a gas phase changing to liquid?
100
Freezing Point
What is point B?
100
A Block of Iron has only Vibrational energy
What is a solid?
200
The volume of a rock with the mass of 22g and a density of 2.22 g/cm3
What is 9.9 ml or cm3.
200
Snapping a twig in two.
What is a physical change?
200
Sublimation, Dry Ice for example.
What is the process of a solid going directly to a gas?
200
Condensation
What is occurring between points E and D?
200
Has a defined shape and volume.
What is a Solid?
300
What is a volume of 5ml?
300
Daily Double!
Sardines in a Can are like a solid
Sardines moving along a packaging line are like a liquid.
Then sardines swimming freely in the ocean are...
What is like a gas?
300
Gas => Liquid => Solid
What are the phase changes as a gas loses kinetic energy and the particles slow down to become a solid?
300
Freezing
What is occurring between points C and B?
300
Has no defined Shape but has a defined Volume.
What is a Liquid?
400
Motor Oil, Water, Glycerin.
What is the order of density from top to bottom?
400
Particles are rigid.
Particles are tightly packed.
Particles have a constant volume.
Particles have a definite shape.
What are the Physical properties of a Solid?
400
Boiling Point.
What is the point where water becomes a gas?
400
Temperature increasing
What is happing between points A&B and C&D?
400
No definite Shape nor Volume.
What is a gas?
500
Volume of an Aluminum block 8cm long, 4cm wide and 3 cm in height.
What is 96 cm3?
500
Mixing Baking Soda and Vinegar produces Carbon Dioxide gas.
What is a Chemical Reaction?
500
A balloon gets larger when exposed to the heat of sunlight.
What is molecule expansion due to an endothermic reaction?
500
Liquid State
What state is water in between points C&D?
500
Particles are in motion.
Particles Cling together.
Particles have a constant volume.
Particles have no definite shape.
What is the Liquid State?