1 / 20

Question of the Day

Question of the Day. Day 4 9-17. Write the balanced chem. equation. Sulfuric acid and sodium hydroxide react to produce sodium sulfate and water. Objectives / Essential Questions. Day 4 9-17. 1. How do I use an equation to represent a chemical reaction?

bryony
Download Presentation

Question 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. Question of the Day Day 4 9-17 Write the balanced chem. equation Sulfuric acid andsodium hydroxide react to produce sodium sulfate and water.

  2. Objectives / Essential Questions Day 4 9-17 1. How do I use an equation to represent a chemical reaction? 2. How do I classify different types of rxns.?

  3. Unit 1 Test Day 3 9-14 Tentatively Day 3 9-24 for pd 1 Tentatively Day 2 9-21 for pd 3 BOTH PERIODS

  4. 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

  5. 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 ***

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

  7. 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

  8. 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

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

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

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

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

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

  14. Practice What type of reaction is: H2(g) + F2(g) 2HF(g)

  15. Practice What type of reaction is: 2 2 NaBr + Cl2 NaCl + Br2

  16. Practice What type of reaction is: 2KI + Pb(NO3)2 PbI2 + 2KNO3

  17. Practice What type of reaction is: 2H2O(l) 2H2(g) + O2(g) electricity

  18. Practice What type of reaction requires aqueous reactants? What type of reaction requires addition of heat and/or electricity? Describe some examples?

  19. Types of Chemical Equations Combustion Reactions Combustion reactions – a substance combines with oxygen, releasing a large amount of energy (light or heat) Unique equations Examples: Hydrogen gas: 2H2(g) + O2(g) 2H2O(g) Propane: C3H8(g) + 5O2(g) 3CO2(g) + 4H2O(g)

  20. Assignment Handout

More Related