1 / 8

Chemical Reactions

Chemical Reactions. The 5 Basic Classifications. SYNTHESIS. A reaction in which two or more reactants yield a single product . Also called composition or combination General Equation A + B  AB EX : 2 Li + Se ---> Li 2 Se. Decomposition Reaction.

etenia
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 The 5 Basic Classifications

  2. SYNTHESIS • A reaction in which two or more reactants yield a single product. • Also called composition or combination • General Equation A + B  AB • EX: 2 Li + Se ---> Li2Se

  3. Decomposition Reaction One Reactant Breaking Down into two or more products General Equation AB ---> A + B Example: 2 HgO  2 Hg + O2

  4. Single Replacement • Sometimes called Displacement • One element replaces a similar element in a compound A + BX  AX + B 2 Na + 2 HOH ----> 2 NaOH + H2

  5. Double Replacement • Reaction that has the interchanging of two ions from two different compounds. • general form: AB + CD----> AD + CB • Example: Pb(NO3)2 + 2 KI ----> PbI2 + 2 KNO3

  6. Double Replacement • Equation consists of two reactants that have both a cation and anion. • During a reaction the cations (or anions) switch places. • The products usually consist of a precipitate.

  7. What IsCombustion? • One or more reactants combine with oxygen releasing heat or light • Any combustion reaction must include the reactant oxygen, O2 • General Equation: CmHn+ O2 CO2 + H2O Example: CH4(g) + 2O2(g) CO2(g) +2 H20

  8. Reaction Checklist • 1) Is O2 a reactant? (combustion) • 2) One product? (synthesis) • 3) One reactant? (decomposition) • 4) Is an element being replaced? (single) • 5) 2 switches? (double) NEXT WEEK: STOICHIOMETRY!!!!

More Related