Matter And Mixtures Flashcards
Matter
Anything that occupies space and has mass.
Mass
The amount of matter in an object
3 states of matter
Solid,liquid and gases
Properties of solids
Solids have a definite shape
Solids have a definite volume
Solids cannot be compressed
Solids cannot flow
Properties of liquids
Liquids have no definite shape
Liquids have a definite volume
Liquids cannot be compressed
Liquids can flow
Properties of Gases
They have no definite volume
Gases have no definite shape
Gases can be compressed
Gases can flow
Heat energy
In order for a substance to change state
Latent heat
As a substance changes state it uses
Melting point
When both the solid and liquid state exist together(changing from from a solid to a liquid)
The Boiling Point
Of A liquid is when evaporation begins to happen throughout the liquid (changing from a liquid to a gas)
Condensation
Is the changing of a gas to a liquid
Diffusion
The movement of particles from an area
Plasma
The fourth state of matter, like gas but can conduct electricity.
Physical change
No change in particles, just the particle arrangement and energy
Chemical change
A reaction takes place and a new substance is formed
During with chemical reaction
The atoms rearrange to form a new substance
Law of conservation of mass
Matter can be changed from one form to another
Mixture
A mixture of two or more substances mingled together but not chemically eg sand an water
There are our methods of separating mixtures
Filtration
Evaporation
Distillation
Chromatography
Filtration
Used to separate small insoluble solids(don’t dissolve in liquid)
From a liquid by using filter paper and a funnel to trap the solids eg sand and water
Evaporation
Used to separate soluble solids (dissolve in liquids) from a solution by evaporating off the liquid to leave the solids eg salt water
Disitillation
Used to separate two liquids with different boiling points such as alcohol (boils at 78) and water (boils at 100). Also used to separate a soluble solid from a liquid (e.g. seawater) to give a pure sample of each.
Chromatography
Used to separate a mixture of dissolved substances in a solution e.g. the different colours in a black marker
Mixture
consists of two or more substances mingled together but not chemically combined
Insoluble
Does not dissolve in a liquid
Soluble
Dissolves in a liquid
