1 / 13

Chemical Reactions

Chemical Reactions. Michelangelo La Mattina. What is chemical reaction?. Chemical reaction tells you the substances present before and after the reactions. Reactants – substances that undergo change Products – new substances formed as a result of that change

stewart-english
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 Michelangelo La Mattina

  2. What is chemical reaction? • Chemical reaction tells you the substances present before and after the reactions. • Reactants – substances that undergo change • Products – new substances formed as a result of that change • The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction. • Should be balanced because the masses are equal, law conservation of mass

  3. Chemical Equation • Reactants  Products • Ex. • C + O  CO2 • Carbon + Oxygen  Carbon Dioxide • Chemical Equation is a representation of a chemical reaction in which the reactants and products are expressed as formulas. • The way it is read – “Carbon and oxygen react and form carbon dioxide” or “The reaction of carbon and oxygen yields carbon dioxide.

  4. Classifying Reactions • Synthesis Reactions • Decomposition Reactions • Single Displacement • Double Displacement

  5. Synthesis reactions • Reaction in which two or more substances react to form a single substance • Ex. A + B  AB • 2Na + Cl2 2NaCl • Eggs + Brownie mixture + water + oil Brownies

  6. Decomposition • Opposite of Synthesis reaction • Compound breaks down into two or more simpler substances • AB  A + B • Ex. 2H2O  2H2 + O2 • Candle  Wick + Wax

  7. Single Displacement • Reaction in which one element takes the place of another element in a compound • A + BC  B + AC • Ex. Cu + 2AgNO3  2Ag + Cu(NO3)2 • Pepperoni + Cheese pizza  Cheese + Pepperoni Pizza

  8. Double Displacement • Two different compounds exchange positive ions and form two new compounds • AB + CD  AD + CB • Ex. Pb(NO3)2 + 2KI  PbI2 + 2KNO3 • French fries and ketchup + Hamburger and soda  French fries and soda  Hamburger and Ketchup

  9. Where I Got My Info Science Textbook Pages 192 - 204

  10. Song In PowerPoint • Howard Jones - And Do You Feel Scared

  11. BACKGROUNDS CITED • httpyorkcountyschools.orgteachersjchristmanchemistry.jpg • httpwww.flickr.comphotostheshyfox299678392sizeso

  12. The End

More Related