chem midterm review pkt

<<chapter 1-2<<

^^What is chemistry^^: the study of the composition of matter and changes that matter undergoes

^^what is mass:^^ the amount of matter in an object; typical unit is gram

^^what is volume^^: how much space an object takes up; typical unit is L or cm^3

^^how does the composition of a pure compound differ from that of a mixture:^^ pure compounds are substances made out of repeated elements, with 100% of the matererial made from the same formula, that cannot be separated; mixture is a combination of different materials/elements in a substance that can be separated and are different throughout the mixture

^^define physical property:^^ a property/trait/action that doesn’t change the identity of the substance

^^define chemical property^^: a property/trait/action that does change the identity of the substance

^^is a piece of wood being sawed in half a chemical of physical property:^^ physical

^^is milk turning sour a physical or chemical property:^^ chemical

^^when metled butter solidifies in the refridgerator, what type of reaction takes place:^^ physical

^^is melting an ice cube physical or chemical:^^ physical

^^is burning a piece of paper chemical or physical:^^ chemical

^^is sharpening a pencil chemical or physical^^: physical

^^is dissolving sugar in water chemical or physical^^: physical

^^is decomposing hydrogen peroxide physical of chemical:^^ physical

^^what is an intensive property vs an extensive property:^^ intensive properties do not rely on the amount; extensive properties does rely on the amount

^^is mass extensive or intensive:^^ extensive

^^is boiling point extensive or intensive^^: intensive

^^is density extensive or intensive^^: intensive

^^is color extensive or intensive^^: intensive

^^classify coke:^^ homogenous mixture

^^classify iron (II) nitrate^^: pure compound

^^classify silver:^^ pure element’

^^classify milk^^: homogenous mixture

^^classify lucky charms^^: heterogenous mixture

^^classify jello with fruit^^: hetergenous mixture

[[chapter 3[[