2. Chemical Reactions By cookiesrule

3. The Basics! http://en.wikipedia.org/wiki/Image:Hydrochloric_acid_ammonia.jpg

4. Reactants and Products In a reaction, the substances used up are called the reactants. The substance that is then created is called the product. For example when iron reacts with sulfur, iron sulfide is formed. Iron and sulfur are the reactants and iron sulfide is the product. http://www.nelsonthornes.com/secondary/science/scinet/scinet/reaction/change/reactant.htm

5. What’s happening? Every type of chemical reaction differs in the exact product. Yet in simplest terms, bonds are broken and formed by the interaction of electrons. http://wiki.answers.com/Q/What_happens_when_a_chemical_reaction_occurs http://www2.nl.edu/jste/bonds.htm

6. The law of conservation of mass According to the law of conservation of mass, in a chemical reaction, matter cant be destroyed or created. In simpler terms, the mass of a product is always equal to the mass of reactants. http://en.wikipedia.org/wiki/Conservation_of_mass

7. Five signs of a chemical reaction. Change of color Formation of gas Formation of precipitate. Change in temperature. A type of energy is produced. http://answers.yahoo.com/question/index?qid=20081109 193239AAsxvbW

8. Energy and Chemical Reactions The role of energy in chemical reactions. http://en.wikipedia.org/wiki/Potential_energy

9. Chemical potential Energy Chemical energy is a form of potential energy in relation to the structure of an atom. The energy of a chemical substance can be altered to other forms of energy by a chemical reaction. For example, when fuel is burning, the energy is transformed into heat. http://en.wikipedia.org/wiki/Potential_energy

10. Exothermic In an exothermic reaction, energy is released as heat, light or sound. An Example of an Exothermic reaction is the combustion of fuels. Endothermic In an endothermic reaction, it must absorb as much energy as possible to be successful. These reactions do not occur spontaneously. When endothermic reactions take place, you record the drop in temperature. An example of an endothermic reaction would simply be melting Ice cubes. http://chemistry.about.com/cs/generalchemistry/a/aa051903a.htm

11. Activation energy Activation energy is the minimum amount of energy a reaction requires to occur. Often, you must somehow add energy to your reaction to initiate the process. http://www.bio-medicine.org/biology-definition/Activation_energy/

12. Types of Reactions Synthesis Decomposition Single Replacement Double Replacement Combustion http://www.usoe.k12.ut.us/curr/science/sciber00/8th/matter/sciber/c hemtype.htm

13. Synthesis In a synthesis reaction, two or more simple substances combine to form a larger and more complex substance. 2 reactants yield one substance. For example, Sodium combines with chlorine and then produces sodium chloride 2Na + Cl2 --> 2NaCl www.amgmedia.com/freephotos/free-photos-3.html

14. Decomposition In a decomposition reaction, a complex substance breaks down into several simpler substances. While looking at a formula, you can see that one reactant produces two products. For example, water breaks down into Oxygen and hydrogen 2H 2 O  2H 2 + O 2 http://www.chanceandchoice.com/ChanceandChoice/w aterstructure.jpg

15. Single Replacement In a single replacement reaction, a single element replaces another in a compound. In this type of reaction, you can see that 2 reactants yield two products. For example, when zinc reacts with hydrochloric acid, zinc replaces the hydrogen. Zn + 2HCl --> ZnCl2 + H2 http://wildeboer- fitch.wikispaces.com/Media- +Chemical+Rx

16. Double Replacement In this reaction, both parts of two compounds switch to form two new compounds. You will see that two reactants yield two products. For example, when you combine barium chloride with sodium sulfate, both parts of the compunds with with the other compound therefore it forms barium sulfate and sodium chloride.BaCl2 + Na2SO4 --> BaSO4 + 2NaCl http://wildeboer-fitch.wikispaces.com/Media- +Chemical+Rx

17. Combustion In this reaction all substances in a compound are combined with oxygen, which then produces carbon dioxide and water. It is an exothermic reaction, and therefore produced heat. For example, you can burn magnesium and oxygen together. 2Mg + O2 --> 2MgO http://en.wikipedia.org/wiki/Combustion http://wildeboer-fitch.wikispaces.com/Media- +Chemical+Rx

18. Bibliography Reactions http://www.nelsonthornes.com/secondary/science/scinet/scinet/reaction/change/react ant.htm http://www.nelsonthornes.com/secondary/science/scinet/scinet/reaction/change/react ant.htm Combustion http://en.wikipedia.org/wiki/Combustionhttp://en.wikipedia.org/wiki/Combustion Types of Reactions http://www.usoe.k12.ut.us/curr/science/sciber00/8th/matter/sciber/chemtype.htm http://www.usoe.k12.ut.us/curr/science/sciber00/8th/matter/sciber/chemtype.htm Activation Energy http://www.bio-medicine.org/biology-definition/Activation_energy/http://www.bio-medicine.org/biology-definition/Activation_energy/ Exothermic and Endothermic Reactions http://chemistry.about.com/cs/generalchemistry/a/aa051903a.htm http://chemistry.about.com/cs/generalchemistry/a/aa051903a.htm Potential Energy http://en.wikipedia.org/wiki/Potential_energyhttp://en.wikipedia.org/wiki/Potential_energy The five Signs http://answers.yahoo.com/question/index?qid=20081109193239AAsxvbW http://answers.yahoo.com/question/index?qid=20081109193239AAsxvbW Conservation of Mass http://en.wikipedia.org/wiki/Conservation_of_masshttp://en.wikipedia.org/wiki/Conservation_of_mass What Happens? http://wiki.answers.com/Q/What_happens_when_a_chemical_reaction_occurs http://wiki.answers.com/Q/What_happens_when_a_chemical_reaction_occurs Reactants and Products http://www.nelsonthornes.com/secondary/science/scinet/scinet/reaction/change/react ant.htm http://www.nelsonthornes.com/secondary/science/scinet/scinet/reaction/change/react ant.htm

19. http://web.syr.edu/~gavan/bugs.jpg That’s all Folks! This presentation has been brought to you by cookiesrule