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Chemistry 1001 Notes (Got A+ on the test)

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Department
Chemistry
Course
CHEM 1001
Professor
All Professors
Semester
Winter

Description
Chemistry100124082009213600EricEJF7501aolcomHomework1Homework2andQuiz1dueonaugust31Homework1TrueItpredictsfutureobservationsNotesLecture1AllthingsarephysicalobjectsbodieswithphysicalpropertiesLecture2SCIENTIFICNOTATIONANDSIGNIFICANTFIGURESMeasurementandProblemsolvingSIunitsandprecisionQuantitativeObservationEverymeasurementinsciencehasanumberandaunitadegreeofuncertaintyTheunittellsuswhatstandardyouarecomparingThenumbertellsyouthemultipleofthestandardScientificexponentialNotationawayofwritinglargeandsmallnumberswithoutconfusionScientificnotationruletakethefirstnumberyouhavethenuseadecimalEachdecimalplaceinournumbersystemisadifferentpowerof10stTocomparenumberswritteninscientificnotation1compareexponentson10ifexponentsequalthencomparedecimalnumbers4123401234X10400001234012340X1061234X1000000012341oz116poundAmeasurementhasanuncertaintybasedonwhatinstrumentisusedAccuracyvsPrecisionAccuracyonthevalueitissupposedtobeonPrecisiononthesamevalueconsistentlythesystemwewillusetowritemeasurementiscalledsignificantfiguresinadecimalnumberEX1034thefirstdigitsbeforethedecimaliscertainandthedecimalisuncertainSignificantFiguresSigFigsistheamountoffiguresgiven
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