1 / 12

Types of Reactions

Types of Reactions. Mikaela Jahncke Chem. 11 Adv. B Block 05/25/10. Five Types. Composition (synthesis) Decomposition Single displacement Double displacement Combustion. Combination (synthesis).

gita
Télécharger la présentation

Types of 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. Types of Reactions Mikaela Jahncke Chem. 11 Adv. B Block 05/25/10

  2. Five Types • Composition (synthesis) • Decomposition • Single displacement • Double displacement • Combustion

  3. Combination (synthesis) • A composition reaction is when two or more simple compounds combine to form a more complicated one. • A + B AB • Two element have to form a binary compound (compound with two parts) S + O2 SO2 • Non-metal oxides in water make an acid CO2 + H2O H2CO3

  4. Examples 2Li2O • 4Li + O2 • Aluminium + oxygen gas • Na2O + H2O Aluminium oxide 2NaOH

  5. Decomposition • Opposite of combination • Complex molecule breaks down to make simpler ones • AB A + B • For binary compounds: binary compound element + element 2H2O 2H2 + O2 • For more complicated compounds: NiCO3heat NiO + CO2

  6. Examples • 2Hg • 2Cl2O5 • NH4NO3 heat • 2KClO3 heat 2Hg + O2 2Cl2 + 5O2 N2O + 2H2O 2KCl + 3O2

  7. Single Displacement • One element trades places with another element in a compound • A + BC AC + B Ex. Ca + 2NaOH Ca(OH)2 + 2Na Cl2 + BaBr2 BaCl2 + Br2 • A can only replace B if A is more reactive than B Ex. Mg + NaOH no reaction (Mg is less reactive)

  8. Examples • Fe + CuSO4 • Cl2 + KI • Mg + 2 H2O • I2 + BaBr2 Cu + FeSO4 I2 + KCl Mg(OH)2 + H2 No reaction (I is less reactive)

  9. Double Displacement • The anions and cations of two different molecules switch places, forming two entirely different compounds • AB + CD AD + BC KI + Pb(NO3)2 PbI2 + 2KNO3 • 2 compounds do not always react. There are 3 major things which make these reactions happen: I) a precipitate can be formed II) a molecular compound can be formed III) a gas can be formed • A neutralization reaction is a special double displacement reaction: Acid + Hydroxide salt + water HCl + NaOH NaCl + H2O

  10. Examples • 2AlBr3 + 3K2SO4 • FeS + HCl • NaCl + H2SO4 • KOH + H2SO4 6KBr + Al2(SO4)3 FeCl2 + H2S Na2SO4 + HCl K2SO4 + H2O

  11. Combustion • When oxygen combines with another compound to for carbon dioxide and water • These reaction are exothermic, which means they produce heat • Example: C10H8 + 12 O2 10 CO2 + 4 H2O

  12. Summary

More Related