Types of Chemical Reactions

384 views

Published on

Published in: Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
384
On SlideShare
0
From Embeds
0
Number of Embeds
14
Actions
Shares
0
Downloads
10
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Types of Chemical Reactions

  1. 1. Product or Reactant? • H2SO4 + BaCl2 1. BaCl2 Reactant Product 2. HCl 3. BaSO4 4. H2SO4 Product Reactant 2HCl + BaSO4
  2. 2. Review Chemical Reactions Law of Conservation of Matter
  3. 3. 1. Synthesis Reactions Combining of several simple substances to form a more complicated substance
  4. 4. Synthesis Reactions A + B  AB A = element B = element AB = compound
  5. 5. Synthesis Reactions 2Mg + O  2MgO 2 Magnesium (A) + Oxygen (B) Magnesium oxide (AB)
  6. 6. 2. Decomposition Reactions The break down of a compound into simpler substances AB  A + B Opposite of synthesis
  7. 7. Decomposition Reactions 2H O  2 2H2 + O2 Done by electrolysis
  8. 8. 3. Single Replacement A free element takes the place of, or replaces, another element Takes place between an element and a compound
  9. 9. Single Replacement A + BC  AC + B A – free element BC - compound AC – new compound B - new free element
  10. 10. Single Replacement Zn + 2HCl  ZnCl2 + H2 Hydrogen is set free
  11. 11. 4. Double Replacement  Two elements in two different compounds switch places with each other  Takes place between two compounds  Two new compounds form
  12. 12. Double Replacement AB + CD  AD + CB AB – compound 1 CD – compound 2 AD – new compound 1 CB – new compound 2
  13. 13. Double Replacement  Na(OH) + HCl  NaCl + H(OH)  (OH) and Cl change places  2 new compounds form  NaCl and H O 2
  14. 14. These reactions can be… ExothermicHeat is given off It feels hot!
  15. 15. These reactions can be… EndothermicHeat is absorbed It feels cold!

×