Matter p.2 Flashcards
Physical Properties
Any characteristic that can be observed using your 5 senses without changing the substance
chemical properties
Any characteristic that describes how matter interacts with another substance
biological properties
The characteristic of having all 9 features of living things
physical change
Change to the physical properties of matter, substance is not changed into a new substance
chemical change
Change to the chemical properties of matter, substance is changed into a new substance with new properties, cannot change back
law of conservation of matter/mass
Matter cannot be created nor destroyed,
The number of atoms/mass of the reactants equals the number of atoms/mass of the products.
phase/state of matter
solid, liquid, and gas
Changed by changing temperature or pressure
solid
Definite shape & definite volume
Particles packed together and vibrate but have fixed positions
Lower energy
liquid
No definite shape but has definite volume
Particles spread apart
Medium energy
gas
No definite shape & no definite volume
Particles spread far apart
High energy
melting
matter changing from solid to liquid
⬆ energy, ⬆ particle movement
melting point= temperature substance melts at
freezing/solidification
matter changing from liquid to solid
⬇ energy, ⬇ particle movement
freezing point= temperature substance freezes at
vaporization/evaporation
matter changing from liquid to gas
⬆ energy, ⬆ particle movement
Boiling point= temperature substance turns to gas at
condensation
matter changing from gas to liquid
⬇ energy, ⬇ particle movement
sublimation
matter changing from solid to gas
⬆ energy, ⬆ particle movement
