Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
Physical Change
|
no new substance formedChem
|
|
|
Chemical change
|
a new substance is formed (ex- rust, precipitate)"
|
|
|
law of conservation of mass
|
matter cannot be created nor destroyed- we will always have the same total mass before and after a change
|
|
|
substance
|
"pure"
-homogeneous -element -compound |
|
|
Element
|
pure substance, can be monatomic or diatomic
|
|
|
compound
|
2 or more elements chemically combined
-fixed ratio -composition cannot vary |
|
|
mixture
|
2 or more substances physically combined, can be separated by physical means
|
|
|
solic
|
definite shape, volume, particles close together in a "fixed geometric pattern"
|
|
|
liquid
|
takes shape of container, definite volume, particles slightly spread apart
|
|
|
gas
|
takes the shape and volume of its container, particles spread out and moving randomly
|
|
|
physical properties
|
determined by the appearance, state or form of a material
|
|
|
chemical properties
|
describe the behavior of a material in a chemical reaction
|
|
|
filtration
|
separates mixtures based on particle size
|
|
|
distillation
|
separates a mixture based on boiling point
|
|
|
chromatography
|
separates a mixture based on attractions to different surfaces
|
