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10.3 Pre-Class Lecture duration 10 minutes 47 seconds 10.3 Pre-Class Lecture 10.3 Pre-Class Lecture	10.3 Pre-Class Lecture pressure gas moles mole times fraction argon grams molecule pressures liters volume amount mixtures atmospheres n2 point nitrogen milliliters table From Leena Nabulsi 0 likes 16 plays 0
1.1 Pre-Class Lecture duration 6 minutes 52 seconds 1.1 Pre-Class Lecture 1.1 Pre-Class Lecture	1.1 Pre-Class Lecture change things chemical properties matter representations cake water elements mixtures mixture lot wednesday glass composition gas color propane chemistry unit From Leena Nabulsi 0 likes 35 plays 0