TE Technology Day – classes cancelled; attendance to visit your technology is mandatory
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View This Poll View This Poll View This Poll View This Poll View This Poll View This Poll View This Poll View This Poll View This Poll View This Poll Here are the answers to Polls 11 to 20. Good work to those who participated! Poll 11: What is the charge . . . → Read More: ** Answers to Polls 11-20 Road maps: From Percent Composition to Empirical Formula to Chemical Formula Hebden Page 85 Hebden Page 86 Expanded road map for “Mole ‐ Mass ‐ Volume ‐ Particles” Calculations Lecture Notes: Feb 20, 2012 – Unit 6 – 6.1 to 6.3, 6.6 Watch these videos: The solution process – The attack of the water . . . → Read More: Scanned lecture notes Test #1 will have questions that test your knowledge on: Unit 2 – Determination of significant figures Unit 2 – Rounding and calculations involving significant figures Unit 2 – SI units and prefixes Unit 2 – Conversion between SI units Unit 2 – Density type calculations Unit 3 – Matter – Classification of Matter . . . → Read More: Test #1 includes … Question 1: A 1990 US penny (zinc plated with a thin layer of copper) with a mass of 2.552 g contains 2.488 g of zinc. What is the mass percent of (a) copper and (b) zinc? Answer to Question 1: Mass of the penny = 2.552 g. (4 sig figs) Mass of zinc . . . → Read More: Lab: Experiment 6 Practice Questions |
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