Chapter 1 ec CHM1301 - Chapter 1 - CHM1301 Physical...

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Chapter 1 CHM1301 - Physical properties vs. chemical properties: property can be measured without changing the substance vs. substance is chemically altered by measurement of the property - Physical changes vs. chemical changes: physical state alters but substance is chemically the same vs. substance is altered chemically - Atoms join to form molecules - Different elements combine to form compounds - A Mixture is a combination of any of the above which can be separated thru physical changes - Compounds can only be separated using chemical changes - Atoms, elements, molecules and compounds (define these terms) - Mixtures: formed by physically combining any or all of the above - (Unit 1.4) Quantities, units, SI, know table 1.1 (except luminous intensity) - For Mass, SI unit is kg and also g, mg. - For Length, SI unit is m, and also m, cm. - For Time, SI unit is s and also, h, min. - For Temp, SI unit is degrees C and also, K. -
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Chapter 1 ec CHM1301 - Chapter 1 - CHM1301 Physical...

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