PHSC 1170 Lecture 1: Chem Unit 1 Notes
23 Mar 2017
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10. 0 cm3 of mercury: what is the volume of a rock with a density of 3. 00 g/cm3, and a mass of. 600 g: a 2. 1 kg pile of aluminum cans is melted, then cooled into solid cube. V = m/d so you would be dividing m (10. 0) by the smallest number. Mixture: physical blend of 2 or more substances. Homogeneous mixture: cannot see the components of mixtures (uniform) Homogeneous: you can see the components (chocolate chip cookie) Elements: fundamental substances from which all material things are made. Compounds: represented by symbols, aka copper = cu. Compounds: made of 2 or more elements that are chemically combined: groups of atoms bonded together as molecules, aka h and o2 combine to form molecule of water (h2o) Classification of matter: solid: definite shape and volume, liquid: definite volume, no definite shape, gas: neither definite volume nor definite shape, particles that make up gas are far apart and everywhere.
