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[[
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