PTOM

• 1 - All matter is made up of tiny particles, with empty space in between
• 2 - Different substances are made of different particles
• 3 - Particles are in constant motion
• 4 - Particles move faster the hotter they are
• 5 - Particles attract each other, neg and pos
• Solids - Organized, strongest bonds, vibrate, expand slightly
• Liquids - unorganized, medium bonds, flow, expand
• Gas - completely unorganized, zero bonds, flow, expand lots
• L -> evaporation -> g
• g -> deposition -> s
• s -> melting -> l
• l -> freezing -> s
• s -> Sublimation -> g
• g -> condensation -> l
• Pure substances - only 1 element or molecule in it
• Element - Pure Sub with 1 atom thype
• Heterogenous/mechanical - Visibly clumpy mixture
• Homogenous/solution - a mixture in which the components are uniformly distributed throughout the whole mixture