Phase Changes
What is a Phase change?
A transition of matter from one state to another.
What is a property?
Something that describes matter.
What is the definition of exothermic?
A chemical reaction in which energy/heat is Absorbed.
What is matter?
Anything that has mass and volume, or takes up space.
What classification mixture is muddy water?
supension
How do particles move while in a solid state?
They vibrate but do not change their position.
What density does a light object have?
Low density
What is the definition of Endothermic?
Chemical reactions that release energy.
What is a pure substance?
Matter that has the exact same composition and properties.
what is a miscible?
A Miscible is 2 or more liquids that do dissolve into eachother.
What happens when molecules have a higher temperature?
They move faster.
What would happen to an object with a density over 1?
It would sink.
What is a chemical change?
When a substance changes into one or more new substances.
What is a homogenous mixture?
A mixture that is so evenly mixed that you can't see all of the different parts.
What is the definition of density?
The mass per unit volume of a substance.
How does a liquid-state particle arrangement move?
The particles are close together but can move past each other.
what is the definition of chemical properties?
Describes the way a substance reacts when it changes.
What is a physical change?
When a substance's appearance changes it looks different, but the atoms are the same.
What are 2 ways to separate mixtures?
Distillation and filtration
What is a compound?
A substance made up of 2 or more element
What are the 6 different phases of matter?
Evaporation, deposition, Melting, freezing, Condensation, sublimation.
What is the definition of physical properties?
Characteristics of a substance that can be observed without changing the substance.
What are the 5 pieces of evidence of chemical change?
Change in Color, Increase or Decrease in Temperature, Formation of a Precipitate/Solid, Formation of a Gas, Formation of an Odor
Is chocalate syrup a colloid, suspension, solution?
It is a colloid
what are the three states of matter?
Gas, liquid, and solid