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Warm Up (Element or Compound)

Warm Up (Element or Compound). Identify the following as either an element or a compound: Cl 2 CuO O 2 S 8 Na 2 S SO 3 P 4 N 2 CO 2 MgF 2. REMINDER!. Element: a substance that contains only one type of atom

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Warm Up (Element or Compound)

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  1. Warm Up (Element or Compound) • Identify the following as either an element or a compound: Cl2CuO O2 S8 Na2S SO3 P4 N2CO2 MgF2

  2. REMINDER! • Element: a substance that contains only one type of atom • Compound: a substance that is composed of atoms of different elements • NOW RE-CHECK YOUR ANSWERS

  3. Warm Up (Element or Compound) • Identify the following as either an element or a compound: Cl2CuO O2 S8 Na2S SO3 P4 N2CO2 MgF2

  4. Chemical Reactions Thousands of reactions But we are only concerned with The “Basic 5 Types”

  5. What is happening in common for all of the following reactions? • 2 Na  +  Cl2  →    2 NaCl • N2 +  3 H2  →    2 NH3 • 2 Mg  +  O2  →    2 MgO • C  +  O2  →    CO2 • P4  + 6 Cl2  →    4 PCl3

  6. Synthesis Two or more simpler substances come together to form a new substance A + B  AB

  7. Synthesis • Always makes one product out of multiple reactants. +

  8. Synthesis When magnesium is burned in the presence of oxygen gas, magnesiumoxide is formed. Magnesium + oxygen magnesiumoxide 2Mg + O2 2MgO

  9. What is happening in common for all of the following reactions? • 2 HgO  →    2 Hg  +  O2 • 2 H2O  →    2 H2  +  O2 • 2 NaCl  →    2 Na  +  Cl2 • CaCO3  →    CaO  +  CO2 • H2SO4  →    H2O  +  SO3

  10. Decomposition A compound breaks down into two or more simpler substances AB A + B 

  11. Decomposition • Always takes one reactant and breaks apart into simpler materials. + + + +

  12. Sodium iodide Water+oxygen Hydrogen peroxide Decomposition When hydrogen peroxide is in the presence of sodium iodide, it breaks down into water and oxygen gas. (electrolysis of water) 2H2O2 2H2O + O2

  13. What is happening in common for all of the following reactions? • Fe  +  CuSO4  →    FeSO4  +  Cu 
 • Cl2  +  2 NaBr  →    2 NaCl  +  Br2 • Zn  +  2 HCl  →    ZnCl2  +  H2 • Mg  +  H2O  →    MgO  +  H2

  14. Single replacement One element replaces another element in a compound AB + C  CB + A

  15. Single Replacement • A single element replaces a positive or negative ion in a compound.

  16. Single Replacement When copper reacts with silvernitrate, silver and coppernitrate are produced. Copper + silvernitrate silver+coppernitrate Cu + AgNO3 CuNO3 + Ag ?? Activity series ??

  17. What is happening in common for all of the following reactions? • NaCl  +  AgNO3 →   NaNO3  +  AgCl • BaCl2  +  Na2 SO4  →    2 NaCl  +  BaSO4 • 2 HCl  +  FeS  →    FeCl2  +  H2S • HCl  +  NaOH  →    NaCl  +  H2O

  18. Two ionic compounds in aqueous solution “switch partners” to form at least one new solid, liquid, or gas. Double replacement AB + CD  AD + CB

  19. Double Replacement • The positive ions in two compounds switch places in a reaction & make two new compounds. Positive ions

  20. Double Replacement When lead nitrate reacts with potassiumiodide, potassiumnitrate and leadiodide are produced. Lead(II)nitrate + potassiumiodide potassiumnitrate+lead(II)iodide Pb(NO3)2 + 2KI  2KNO3 + PbI2

  21. What is happening in common for all of the following reactions? • CH4  +  2 O2  →    CO2  +  2 H2O • 2 C4H10  +  13 O2  →    8 CO2  +  10 H2O • C6H12O6  +  6 O2  →    6 CO2  +  6 H2O • 2 C8H18  +  25 O2  →    16 CO2  +  18 H2O • C2H5OH +  3 O2  →    2 CO2  +  3 H2O

  22. Combustion Compounds (typically with hydrogen and carbon) are combined with oxygen which then produces carbon dioxide and water CxHy + O2  CO2 + H20

  23. Combustion • A compound of carbon and hydrogen reacts with oxygen gas and produces carbon dioxide and water ALWAYS!! + +

  24. Combustion When ethanol reacts with oxygengas, water and carbon dioxide are produced. ethanol + oxygen water + carbon dioxide C2H5OH + 3O2 3H2O + 2CO2

  25. YouTube Experiment • Culligan Bottle Experiment • Better View

  26. Identify the type of reaction:BaCl2 +  Na2 SO4  → 2 NaCl  +  BaSO4 • Synthesis • Decomposition • Single Replacement • Double Replacement • Combustion

  27. Identify the type of reaction:N2 +  3 H2  →    2 NH3 • Synthesis • Decomposition • Single Replacement • Double Replacement • Combustion

  28. Identify the type of reaction:CaCO3  →    CaO  +  CO2 • Synthesis • Decomposition • Single Replacement • Double Replacement • Combustion

  29. Identify the type of reaction:CH4  +  2 O2 →    CO2  +  2 H2O • Synthesis • Decomposition • Single Replacement • Double Replacement • Combustion

  30. Identify the type of reaction:Zn  +  2 HCl →    ZnCl2  +  H2 • Synthesis • Decomposition • Single Replacement • Double Replacement • Combustion

  31. Identify the type of reaction:C6H12O6  +  6O2  →    6CO2  +  6H2O • Synthesis • Decomposition • Single Replacement • Double Replacement • Combustion

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