WW1

gen chem week 1, (8/20, 8/22), intro principals

what is matter

something that has mass and occupies space

what are the classifications of matter?

pure (compounds or elements) and mixtures (homo or het)

what are the states of matter and their technical definitions?

solids - fixed volume, fixed shape
liquids - fixed volume, unfixed shape
gases - unfixed volume, unfixed shape

whats the difference between homogeneous and heterogeneous mixtures?

homo - no visual difference (looks like a “pure”; compound)
hetero - visual difference

coffee v a salad

whats the difference between qualitative and quantitative observations?

qualitative - visual, physical (including temp), tactile
quantitative - number-based data

what is a natural law

an observation that applies to multiple systems