Topic 3 States Of Matter,seperating And Purifying📚 Flashcards
What is the arrangement of a solid?
-ordered
-neat rows
What is the arrangement of liquid?
-random
-some touch
What is the arrangement of gas?
-random
-apart
What is the movement of particles in a solid?
-vibrating
-about fixed position
What is the movement of particles in a liquid?
-rolling over eachother
What is the movement of particles in a gas?
-flying around
-high energy
What does a heating or cooling curve show?
how the temperature changes with time
How are state changes shown?
as horizontal lines
What do mixtures contain?
substances which are not chemically combined and can be separated
What do pure materials contain?
Only one substance
What do impure materials contain?
A mixture of substances
What melting point do pure substances have?
A sharp melting point
What melting point do impure substances have ?
A range of melting points
What is distillation?
Distillation is used to separate a solvent from a solution or mixture of solvent
