Chemistry & Matter - Coggle Diagram
Chemistry & Matter
Science that studies the composition (atoms, molecules), the properties (density, hardness) and the interactions (everything about chemical reactions) between substances.
Anything that occupies space and has mass is matter
Matter can be classified into two categories
Constant composition and distinct chemical properties. They can be:
Fundamental substance; cannot be separated into simpler substances by chemical methods.
For example: O, H, Fe, S
Substance composed of two or more elements in fixed proportions; can be separated substances and elements only by chemical methods.
For example: Hydrides
It consists of two or more pure substances that retain their individual identities and can be separated by physical methods. They can be:
For example: Apple juice
Clloids: you can't see the separation even though is there.
For example: Sandwich
Suspensions: you can see the separation.
States of matter
Definite shape and volume
All particles are very close together
For example: Ice
Indefinite shape and definite volume
Particles are not very close together
For example: water
Indefinite shape and volume
Particles are very far apart and they move freely
For example: Air
No definite shape or volume
For example: Sun
Capacity to do work or create heat
Work: force that makes something to move.
Heat: transfer of energy by thermal reactions
Depends on the quantity
Length, mass, volume, shape, surface area
Don't depend on quantity
Color, smell, texture, density, hardness, viscosity, luster, Melting, Boiling and Freezing point.