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Warm-Up March 11, 2013

Warm-Up March 11, 2013. Write down the date and objective. Objective: SWBAT discern the differences between types of reactions by writing and performing skits. Complete the following warm-up: What type of reaction is taking place in the following examples (chemical or physical)? Paper rips

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Warm-Up March 11, 2013

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  1. Warm-UpMarch 11, 2013 • Write down the date and objective. • Objective: SWBAT discern the differences between types of reactions by writing and performing skits. • Complete the following warm-up: What type of reaction is taking place in the following examples (chemical or physical)? • Paper rips • Burning paper • Water freezes inside a rock and breaks it up • Fireworks exploding • Digestion of food • Changing color

  2. Objective & Agenda • Objective: SWBAT discern the differences between types of reactions by writing and performing skits. Agenda • Every Monday Matters • Chemical Reactions • Group Competition • Skits • Puzzle • Exit Slip

  3. Every Monday Matters Don’t Honk

  4. FACTS Noise is among the most pervasive pollutants today. 28 million people have impaired hearing caused by noise. Hearing loss is occurring in people at younger and younger ages. Overexposure to noise can cause increased heart rate, respiration, sweating, headaches, stress, blood pressure, and sleep loss. The law states that a driver of a motor vehicle, when reasonably necessary to ensure safe operation, shall give audible warning with the horn. The law prohibits the use of horns for any other reason, except as part of an alarm system. Sound is measured by decibels (dBA). Common sounds include normal coversation (60dBA), a noisy restaurant (85dBA), a car horn (110dBA), and a jackhammer (130dBA). At 110 dBA, the maximum exposure time is 1 minute and 29 seconds before hearing damage can occur.

  5. Noise-induced hearing loss, though preventable, is permanent. TAKE ACTION TODAY Only use your horn when it is reasonably necessary to ensure the safe operation of your vehicle. Don’t use your horn to let someone know you’re angry, to tell people you’re waiting outside to pick them up, to say good-bye, and/or as a way of protesting. Get your hearing checked.

  6. YOU MATTER! You can be both the cause and the victim of noise. Noise-induced hearing loss is cumulative over one’s lifespan. To avoid noise-induced hearing loss, pay attention to the noises around you, turn down the volume whenever possible, and don’t honk your horn unnecessarily. Often, by the time you realize you are losing your hearing, it’s too late.

  7. Types of Reactions Notes • Follow along and take notes • You will be using these later today, so be detailed!!

  8. Graphic Organizer • Combination or Synthesis – two reactants come together to form one product Eqtn: A + B  AB Examples: 2 Na + Cl2 2 NaCl 2 Li + Br2 2 LiBr 1 Product 2 Reactants  +

  9. Decomposition – one reactant breaks apart to form two or more products Eqtn: AB  A +B 2 NaCl 2 Na + Cl2 2 LiBr 2 Li + Br2 • NOTE: What is the relationship between synthesis and decomposition reactions? 2 Products 1 Reactants + 

  10. SINGLE Replacement – one element or ion replaces another in a compound! There are always 2 reactants and 2 products; The reactant that begins alone ends with a partner EQTN= AB + C  AC + B Examples: 2 Fe + 3 CuCl2  3 Cu + 2 FeCl3 Ni + 2 HCl H2 + NiCl2 2 Products 2 Reactants +  +

  11. 4. Double Replacement - ions trade partners AB + CD  AD + BC Examples: CaCl2 + 2 AgNO3Ca(NO3)2 + 2AgCl (Ca, Ag trade; AgCl precipitates) Na2SO4 + BaCl2 2 NaCl + BaSO4 (Na, Ba trade; BaSO4 precipitates) 2 Products Notice that there is no false King. 2 Reactants I know this is outdated…but it led to three championships! + + 

  12. 5. Combustion - any reactant with C and H in it reacts with O2 to produce CO2 and H2O as products Gen. Equation = (X + O2 CO2 + H2O + energy) CH4 + 2 O2 CO2 + 2 H2O + energy (burning natural gas) C3H8 + 5 O2 3 CO2 + 4 H2O + energy (burning propane) Carbon Dioxide and Water Hydrocarbonand Oxygen + 

  13. FLASH • I am about to put up 10 different equations. • You and your team must decide what type of equation is listed. Once you decide and I prompt…FLASH! the card with the appropriate chemical reaction. • We are playing by groups • Winning group receives reward

  14. 1)  NaOH + KNO3 NaNO3 + KOH • Double Replacement

  15. 2)  CH4 + 2 O2 CO2 + 2 H2O • Combustion

  16. 3)  2 Fe + 6 NaBr 2 FeBr3 + 6 Na • Single Replacement

  17. 4)  CaSO4 + Mg(OH)2 Ca(OH)2 + MgSO4 • Double Replacement

  18. 5)  Pb + O2 PbO2 • Synthesis

  19. 6)  Na2CO3 Na2O + CO2 • Decomposition

  20. 7) 2Al  +  6HCl    2AlCl3 + 3H2 • Single Replacement

  21. 8) 3H2+ N2 2NH3 • Synthesis

  22. 9) 2H2O     O2 + 2H2 • Decomposition

  23. 10) CH3OH + O2 CO2 + H2O • Combustion

  24. Skit Time • In your groups, you will all be given a type of reaction. You must create 2-3 minute skit that shows a real-life interpretation of the reaction. • Rules: • ALL SKITS MUST BE APPROPRIATE • EACH PERSON IN THE GROUP MUST SPEAK • A SCRIPT NEEDS TO BE WRITTEN OUT – this is how I will grade you You have 20 minutes to create your skit. YOUR PERFORMANCE WILL COUNT AS A QUIZ GRADE (for next quarter).

  25. Lights, Camera, Action! • While another group is performing, the audience is doing the following: • BEING SILENT • PAYING FULL ATTENTION TO THE GROUP PERFORMING • Any group that does not follow these rules will have their grade lowered.

  26. Puzzle

  27. Honors Homework • Reading Assignment #6 Due Friday • Read pages 277 – 299, # 7-13, 27-30, 47-49 • Read pages 309-319, #1-8, 12-17

  28. Quiz Wednesday • Chemical Reactions

  29. Exit SlipMarch 11, 2013 • What type of reaction is the following: 1 Li3N + 3 NH4NO33 LiNO3 + 1 (NH4)3N

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