1 / 25

Q of the Day

Q of the Day. Day 4 5-8. 1. Which type of reaction usually requires energy input?. Balancing Practice:. Balance: C 4 H 10( g ) + O 2( g )  CO 2( g ) + H 2 O ( g ). Balance: H 2 SO 3 + Mg(OH) 2  MgSO 3 + H 2 O. Go to wiki and click links – shssci.wikispaces.com:.

milt
Download Presentation

Q of the Day

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Q of the Day Day 4 5-8 1. Which type of reaction usually requires energy input?

  2. Balancing Practice: Balance: C4H10(g) + O2(g) CO2(g) + H2O(g) Balance: H2SO3 + Mg(OH)2 MgSO3 + H2O

  3. Go to wiki and click links – shssci.wikispaces.com: http://education.jlab.org/elementbalancing/index.html- 15 tries http://www.files.chem.vt.edu/RVGS/ACT/notes/scripts/bal_eq1.html http://www.sciencegeek.net/Chemistry/taters/EquationBalancing.htm - bonus

  4. Q of the Day Day 6 5-10 1. Balance: C4H8(g) + O2(g) CO2(g) + H2O(g) • When sodium reacts w/ chlorine to produce sodium chloride, what type of reaction takes place?

  5. Keystone Exam Schedule Progress Reports

  6. Types of Chemical Equations Single-Replacement Reactions Single-replacement reaction OR displacement reaction – one element replaces a similar element in a compound. A + BX AX + B Y + BX BY + X A, B, X, and Y = eles.; AX, BX, and BY = cmpds. Example: Fe(s) + CuSO4(aq) FeSO4(aq) + Cu(s) A BX AX B

  7. Types of Chemical Equations Single-replacement Reactions • Examples: • a metal with another metal • H in water with a metal • H in an acid with a metal • Halogens ***

  8. Types of Chemical Equations Single-replacement Reactions Single replacement reactions always have ... 2 reactants and 2 products 1 of each is an element

  9. Types of Chemical Equations Double-replacement Reactions Double-replacement reactions – the ions of 2 cmpds. exchange places in an aqueous sltn. to form 2 new cmpds. AX + BY AY + BX - - + - + - + + A, B, X, and Y = ions Example: 2KI(aq) + Pb(NO3)2(aq) PbI2(s) + 2KNO3(aq) AX BY BX AY

  10. Types of Chemical Equations Double-replacement Reactions Double replacement reactions always have ... 2 reactants and 2 products - all compounds In the margin: double reps. can form precipitates most acid-base reactions

  11. Practice What type of reaction is: AX + BY → AY + BX compound compound compound compound

  12. Practice What type of reaction is: X + BY → Y + BX element element compound compound

  13. Practice What type of reaction is: X + BY → BYX element compound compound

  14. Practice What type of reaction is: X + Y → XY element compound element

  15. Practice What type of reaction is: X + BY → Y + BX element element compound compound

  16. Practice What type of reaction is: BY → Y + B element compound element

  17. Go to wiki and click links – shssci.wikispaces.com: http://education.jlab.org/elementbalancing/index.html- 15 tries http://www.files.chem.vt.edu/RVGS/ACT/notes/scripts/bal_eq1.html http://www.sciencegeek.net/Chemistry/taters/EquationBalancing.htm - bonus

  18. Quick Talk Single replacement reaction Products Coefficients Conservation of matter Mg3(PO4)2 Diatomic gas Synthesis reaction Chemical reaction Reactants Decomposition reaction

  19. Assignment Review section 11.2 AND complete #s 12-14 on page 359 15 on page 361 18 on page 365 17 on page 363 20-24 on page 367 Due Thursday 5-3 What Can You Tell Me? – due tomorrow

  20. Lab Activity

  21. Example # 2: 2H2SO3(aq) + O2(g) 2H2SO4(aq) A B AB Example # 3: CaO(s) + SO2(g) CaSO3(s) A B AB A + B AB Example # 1: 2H2(g) + O2(g) 2H2O(g) A B AB

  22. Example: 2H2O(l) 2H2(g) + O2(g) electricity AB A B AB A + B

  23. A + BX AX + B Y + BX BY + X Example: Fe(s) + CuSO4(aq) FeSO4(aq) + Cu(s) A BX AX B AX + BY AY + BX - - + - + - + + Example: 2KI(aq) + Pb(NO3)2(aq) PbI2(s) + 2KNO3(aq) AX BY BX AY

  24. Q of the Day Day 2 4-30 How is a synthesis reaction different from a decomposition reaction?

  25. Objective / Essential Question Day 2 4-30 How does the Law of Conservation of Matter apply to chemical reactions? How do substances react to form products?

More Related