• Document: Regents Chemistry NOTE PACKET. Unit 1: Matter & Measurement. 1 Copyright 2015 Tim Dolgos Copyright 2015 Tim Dolgos
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*KEY* *KEY* Regents Chemistry NOTE PACKET Unit 1: Matter & Measurement 1 Copyright © 2015 Tim Dolgos Copyright © 2015 Tim Dolgos 2 Copyright © 2015 Tim Dolgos *KEY* *KEY* Unit Vocabulary: 1. S.I. unit 10. Extensive 19. Homogeneous Mixture 2. Meter 11. Significant Figures 20. Pure Substance 3. Liter 12. Precision 21. Particle Diagram 4. Gram 13. Accuracy 22. Chromatography 5. Mass 14. Matter 23. Filtration 6. Weight 15. Element 24. Distillation 7. Volume 16. Compound 25. Scientific Notation 8. Density 17. Mixture 9. Intensive 18. Heterogeneous Mixture Unit Objectives: When you complete this unit you will be able to do the following… 1) Classify types of matter 2) Draw particle diagrams to represent different types of matter 3) Recognize various techniques that can be used to separate matter 4) Convert between units of measurements 5) Differentiate between accuracy and precision 6) Write numbers in scientific notation 7) State rules to determine significant figures 8) Count significant figures 9) Understand the importance of significant figures 10) Calculate the volume and density of an object 3 Copyright © 2015 Tim Dolgos Click here to watch the vodcast: https://www.youtube.com/watch?v=1qFOdU6FJc0&list=UUYHoJlMnCXl44uZNErywSgA Matter Anything that has mass and volume (takes up space) Can NOT be separated CAN be Separated by by physical means PHYSICAL means PURE SUBSTANCES MIXTURES (each piece is (each piece looks the same different – not pure) – PURE!) -each piece has exact same composition. Same Different Can NOT be separated Separated by chemical composition composition by chemical means means, only throughout throughout ELEMENT (simplest COMPOUND or HOMOGENEOUS HETEROGENEOUS form of matter) MOLECULE MIXTURE (uniform MIXTURE (not (2+ different elements throughout—distinct uniform throughout— Example: chemically combined) pattern) no pattern) Monoatomic = Na Example: NaCl (table Example: saltwater, Example: Italian (One atom) salt), H2O (water) iced tea dressing, concrete, soil, chocolate chip Diatomic = Cl2 Homo = same cookie (Two atoms) Hetero = opposite Particle Particle Particle Particle Diagram Diagram Diagram Diagram 4 Copyright © 2015 Tim Dolgos Practice Problems: 1. Which particle diagram(s) represent a mixture? 2. Which particle diagram(s) represent a pure substance? 3. Which of the following particle diagrams represents a mixture of one compound and one element? 4. Which particle diagram represents a diatomic element? 5 Copyright © 2015 Tim Dolgos Click here to watch the vodcast: https://www.youtube.com/watch?v=RCIVQFA_YO4&feature=youtu.be Properties of Matter:  Physical properties are the constants about a substance; can use our senses to observe them; do not require chemical analysis

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