Study guide: changes in state Flashcards
chemical change
another name for a chemical reaction, results in a new substance with new properties
physical change
alters the shape or form of a substance, but the identity of the substance stays the same
chemical change examples
metal rusting
wood burning
physical change examples
ice melting
sugar dissolving in water
the melting point of a substance is the same as its ____ point
freezing
what is a solid?
state of matter
definite shape
definite volume
particles are close and tightly packed
what is a liquid?
state of matter
indefinite shape
definite volume
particles stay close together but can slide past each other freely
what is a gas?
a state of matter
indefinite shape
indefinite volume
particles are far apart and move freely in any direction
what is freezing?
change of state
liquid to solid
what is melting
change of state
solid to liquid
what is sublimation?
change of state
solid to gas
What is vaporization?
change of state
liquid to gas
What is condensation?
change of state
gas to liquid
What is boiling?
change of state
liquid to gas
