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Warm-up: 1. What is an element? 2. What is a compound?

Warm-up: 1. What is an element? 2. What is a compound?. 16. Titanium 17. Iron 18. Nickel 19. Copper 20. Tin 21. Iodine 22. Tungsten 23. Gold 24. Mercury Lead Radon.

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Warm-up: 1. What is an element? 2. What is a compound?

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  1. Warm-up:1. What is an element?2. What is a compound?

  2. 16. Titanium17. Iron • 18. Nickel • 19. Copper • 20. Tin • 21. Iodine • 22. Tungsten • 23. Gold24. Mercury • Lead • Radon 1. Hydrogen2. Helium3. Lithium4. Boron5. Carbon6. Nitrogen7. Oxygen8.Neon9. Sodium10. Aluminum11. Silicon12. Sulfur13. Chlorine 14. Potassium15. Calcium

  3. Notes: Properties of Matter

  4. Matter is anything that has mass and takes up space.

  5. Elements and Compounds are PURE SUBSTANCES

  6. A mixture is when two or more substances are mixed together but not combined chemically

  7. A mixture retains properties of all original ingredients.

  8. MIXTURE OR PURE SUBSTANCE?

  9. MIXTURE OR PURE SUBSTANCE? NaHCO3 - Sodium Bicarbonate

  10. MIXTURE OR PURE SUBSTANCE? Soil

  11. MIXTURE OR PURE SUBSTANCE? Milk

  12. MIXTURE OR PURE SUBSTANCE? Sugar: C12H22O11

  13. MIXTURE OR PURE SUBSTANCE? Air

  14. MIXTURE OR PURE SUBSTANCE? Oxygen

  15. Homogeneous Mixtures are the same throughout.

  16. Warm-Up:1. Is H2O a _____________. a. Element b. Compound c. Mixture d. All of the Above2. Why is tap water considered a mixture?

  17. Steel is a homogeneous mixture.

  18. Heterogeneous Mixtures are not the same throughout.

  19. 4 States of Matter:-Solid-Liquid-Gas -Plasma

  20. In a gas, molecules are very far apart

  21. In a liquid, molecules are closer together but still move around

  22. In a solid, molecules vibrate in place and do not move around

  23. Plasmas are gases that are so energized that some of their electrons have been stripped away

  24. Gasses and liquids take the shape of their containers, solids do not.

  25. Energy must be added to change a solid to a liquid;

  26. More energy must be added to change a liquid to a gas

  27. Warm-Up: 1. In which state of matter are the molecules moving the fastest?2. In which state of matter are the molecules not moving around, just vibrating in place?3. Matter in which two states takes the shape of its container?4. To make matter change from a solid to a liquid, what must happen to the molecules?

  28. WARM-UP: 1. Matter in which two states takes the shape of its container?2. To make matter change from a solid to a liquid, what must happen to the molecules?

  29. WARM-UP: 1. Which state of matter is the most dense?2. When a substance changes from a solid to a liquid what is this called?3. When a substance changes from a liquid to a gas what is this called?4. When a substance changes from a gas to a liquid, what is this called?

  30. WARM-UP: 1. What is volume? Give two examples of two things that have different volumes.2. What makes each element different from one another? 3. What is atomic number?

  31. 1. What are the types of pure substances? 2. What are the types of mixtures?3. What is density? Describe two things that have different densities. 4. What combination of substances retains the properties of its components?

  32. 5. Give an example of a homogeneous mixture. 6. Give an example of a heterogeneous mixture. 7. List the phases of matter in ascending order of density.8. What must be done to change a gas to a liquid?

  33. 9. What is the phase change called when a solid changes directly to a gas?10. Is density a physical or chemical property of matter?11. Nitrogen boils at -196oC. Is this a physical or chemical property? 12. List these items in order of ascending density:-a bowling ball –a beach ball – a penny – a hot air balloon in the air

  34. Physical Properties of matter describe the matter’s physical characteristics

  35. Boiling/Melting Points H2O = 1000C (2120F) CO2 = -570C (-700F)

  36. Density is a physical property

  37. Density = Mass VolumePractice: A material has a mass of 100g and a volume of 10 cm3.Calculate the density.

  38. Others include:-Thermal Conductivity

  39. -Malleability (ability to be pounded into thin sheets)

  40. -Ductility (ability to be drawn into a thin wire)

  41. Chemical Properties describe how a substance reacts chemically with another substance

  42. In a chemical reaction, you always get a new substance.

  43. Law of Conservation of Matter/Mass:Matter can never be created or destroyed

  44. Warm-Up: 1. Find the density of an object with a mass of 40g and a volume of 5 cubic cm.2. Find the mass of a sample of a substance with a density of 5 g/ml and a volume of 2 ml3. List three physical properties of H2O

  45. Solutions: • S o l u t i o n s - A homogeneous mixture composed of only one phase

  46. Solutions: • S o l v e n t - the most abundant substance in a solution. The solvent dissolves the solute. • S o l u t e - the least abundant substance in a solution. The solute dissolves into the solvent. • In a sugar water solution, water is the solvent & sugar is the solute. • In steel (a solution which becomes a solid) iron is the solvent and carbon is the solute • Air is a solution

  47. Solutions • Homogeneous mixture • Mixed molecule by molecule • Can occur between any state of matter. • Solid in liquid- Kool-aid • Liquid in liquid- antifreeze • Gas in gas- air • Solid in solid - brass • Liquid in gas- water vapor

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