Chemistry study guide: *Scientific notation: inaugural publication is coefficient, must be greater or date to one less than 10. 2nd number is base, must be 10 *Dimensional Analysis: a way to mould problems utilise measurements conversion factors/converting *Cancel out numerators/denominators until you get the unit of measurement you claim (diagonals) *Conversions: 10 mm/1cm 100cm/1m 1kg/1000g 1000g/ 1kg 1kw/ 1000w 1000g/1kg *Accuracy: the measure of how intimately the observational results agree with a true or true encourage..single measurements, no quality. *Precision: the measure of how reliable the experiment is or how consistent it is...measurements atomic number 18 needed, speaks of quality. *SIG FIG RULES: 1. All non-zero numbers ar meaningful 2. Zeros among non-zero numbers are always signifi jackpott 3. Zeros originally a non-zero number are never significant 4.
trailing zeros without a decimal file are not significant unless accompanied by surplus notation indicating the precision of the measurement 5. Trailing zeros with a decimal berth anywhere are all significant Density: mass/volume * portion error: your apprise - true value / true value x 100 *Matter: elements, compounds, mixtures *A physical position is find by examining marrow *A chemical billet is how a subject matter behaves in contact with another substance *Properties can be extensive, depends on amount *Intensive can be independent of amount *Ionic: Metals + Non-metals covalent: Non-metals + Non-metals...If you pauperization to get a full essay, order it on our website! :
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