1 / 8

Chemical Reactions

Chemical Reactions. A chemical change is any change in which a new substance is formed. Evidence: Release of energy as heat and light, change in colour, formation of gas, change in odour, etc. Examples: sulfur + oxygen  sulfur dioxide phosphorus + oxygen  diphosphorus pentoxide

latoyahopkins
Download Presentation

Chemical Reactions

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. Chemical Reactions A chemical change is any change in which a new substance is formed. Evidence: Release of energy as heat and light, change in colour, formation of gas, change in odour, etc. Examples: sulfur + oxygen  sulfur dioxide phosphorus + oxygen  diphosphorus pentoxide magnesium + oxygen magnesium oxide iron + oxygen  iron(III) oxide

  2. Types of Chemical Reactions combustion: AB + oxygen oxides of A & B synthesis: A + B  C decomposition: AB  A + B single displacement: A + BC  AC + B double displacement: AB + CD  AD + CB

  3. C C + O O O O Types: Synthesis Example C + O2 CO2 General: A + B  AB

  4. + Na Na Cl Cl Types: Decomposition Example: NaCl  Na + Cl General: AB  A + B

  5. Hg Hg Hg Hg  + O O O O Types: Decomposition Example 2HgO  2Hg + O2 General: AB  A + B

  6. + +  Cl Cl Cl Cl Zn Zn Cu Cu Types: Single displacement Example: Zn + CuCl2 ZnCl2 + Cu General: AB + C  AC + B

  7. Ca Ca  + + Mg Mg S S O O Types: Double displacement Example: MgO + CaS  MgS + CaO General: AB + CD  AD + CB

  8. Chemical Reactions combustion: AB + oxygen oxides of A & B Example: 2C8H18 + 25O2 16CO2 + 18H2O Combustion occurs when a carbon containing substance burns and creates CO2 and H2O Cellular Respiration is a controlled combustion reaction: Glucose + Oxygen  Carbon dioxide + Water

More Related