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Warm Up December 2, 2013

Warm Up December 2, 2013. What is the Law of Conservation of Mass/Matter? Why is it important?. Warm Up December 2, 2013. Which one of the following chemical reactions/equations is unbalanced? 1) FeO + PdF 2  FeF 2 + PdO 2) P 4 + 5 Br 2  4 PBr 3

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Warm Up December 2, 2013

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  1. Warm Up December 2, 2013 • What is the Law of Conservation of Mass/Matter? • Why is it important?

  2. Warm Up December 2, 2013 • Which one of the following chemical reactions/equations is unbalanced? • 1) FeO + PdF2 FeF2 + PdO • 2) P4 + 5 Br24 PBr3 • 3) 2LiCl + Br22LiBr + Cl2 • 4) PbBr2 + 2HCl2HBr + PbCl2 UNBALANCED

  3. Warm Up December 4, 2013 Element, Compound, or Mixture • What does homogeneous mean? • What does Heterogeneous mean? • What can be Homogeneous, what can be Heterogeneous?

  4. Warm Up December 5, 2013 • Is this chemical equation balanced? • Draw a chart to show your work • PbBr2 + 2HCl2HBr + PbCl2 • Before - After

  5. Warm Up December 6, 2013 • Compare and contrast Compounds & Mixtures

  6. Warm Up December 9, 2013 • Compare and contrast Solids and Liquids? • What is happening when metal sparks in a microwave? • http://www.youtube.com/watch?v=u_yg5eKjA4U

  7. Warm Up December 10, 2013 • Based on volume, shape, particle movement, and/or energy: • How are solids different than gases? • How are liquids different than gases?

  8. Warm Up December 11, 2013 • 1) What is boiling and evaporation called? • 2) What is the nucleus of an atom made up of?

  9. Warm Up December 12, 2013 • What is learning goal #1? • Where can you find the learning goals for this unit?

  10. Warm Up December 13, 2013FRIDAY THE 13th • What is the basic unit of life?

  11. Warm Up December 16, 2013 • If a mass of a block is 200 g, and the volume of the block is 250cm3, what is it’s density? • 0.80 g/cm3 • Which of the phases changes, (melting, freezing, vaporization, condensation, sublimation or deposition) is endothermic?

  12. Warm Up December 17, 2013 • What is the density of an object that has a mass of 350 g and a volume of 23g/cm3?

  13. Warm Up December 18, 2013 • If an object is less dense than salt water and it is put into the ocean, what will happen to it? • Why can a boat made of metal (which is typically more dense than salt water) float and not sink?

  14. Warm Up December 19, 2013 • How can you find the density of an object? • of an irregularly shaped object? • Of a liquid? • Of a cube?

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