cvbilicki_2131 - aq ) 2 NaCl ( aq ) + Br 2 ( l ) 1 (Halogen...

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Chemistry 1 A TYPES OF CHEMICAL REACTIONS Background This handout introduces five general types of chemical reactions or equations. The five general reaction types are listed below, along with examples of each type of reaction. In the examples shown, the symbolism used is: s = solid; l = liquid; g = gas; and aq = aqueous or in "water" solution. The five general reaction types are: 1 1) Combination Reaction (or Synthesis) Generally symbolized by xA + yB A x B y . 3 Mg ( s ) + N 2 ( g ) Mg 3 N 2 ( s ) 2 Cu ( s ) + S ( s ) Cu 2 S ( s ) S ( s ) + O 2 ( g ) SO 2 ( g ) CO 2 (g) + H 2 O ( l ) H 2 CO 3 ( aq ) 12) Decomposition Reaction Generally symbolized by A x B y xA + yB. This is often the reverse of the combination reaction. 2 H 2 O ( l ) 2 H 2 ( g ) + O 2 ( g ) 2 KClO 3 ( s ) 2 KCl ( s ) + 3 O 2 ( g ) (NH 4 ) 2 CO 3 ( s ) 2 NH 3 ( g ) + H 2 O ( l ) + CO 2 ( g ) 13) Single Replacement Reaction Generally symbolized by A + BC AC + B. 2 Al ( s ) + 3 CuSO 4 ( aq ) Al 2 (SO 4 ) 3 ( aq ) + 3 Cu ( s ) Mg ( s ) + 2 HCl ( aq ) MgCl 2 ( aq ) + H 2 ( g ) 2 Na ( s ) + 2 HOH ( l ) 2 NaOH ( aq ) + H 2 ( g ) (Note: This is H 2 O.) Cl 2 ( g ) + 2 NaBr (
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Unformatted text preview: aq ) 2 NaCl ( aq ) + Br 2 ( l ) 1 (Halogen replaces halogen or negative part pushes out negative) 2 3 4 4) Double Replacement Reaction (Ionic Reaction) Generally symbolized by AB + CD AD + CB. Neutralization reaction HCl ( aq ) + NaOH (aq) NaCl ( aq ) + HOH ( l ) (Note: This is H 2 O.) Precipitate forming reactions: Sr(OH) 2 ( aq ) + H 2 SO 4 ( aq ) SrSO 4 ( s ) + 2 H 2 O ( l ) HBr ( aq ) + AgNO 3 ( aq ) AgBr ( s ) + HNO 3 ( aq ) NiCl 2 ( aq ) + 2 NaOH ( aq ) Ni(OH) 2 ( s ) + 2 NaCl ( aq ) 2 NaI ( aq ) + Pb(NO 3 ) 2 ( aq ) PbI 2 ( s ) + 2 NaNO 3 ( aq ) Gas forming reaction CaCO 3 (s) + 2 HCl (aq) CaCl 2 (aq) + CO 2 (g) + H 2 O ( l ) H 2 CO 3 ( aq ) decomposes 55) Combustion (burning in air or oxygen) complete combustion of C x H y or C x H y O z produces carbon dioxide and water CH 4 (g) + 2 O 2 (g) CO 2 (g) + 2 H 2 O ( l ) 2 C 8 H 18 (l) + 25 O 2 (g) 16 CO 2 (g) + 18 H 2 O ( l )...
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This note was uploaded on 04/15/2011 for the course CHEM 1A taught by Professor Bilicki during the Spring '11 term at Pasadena City College.

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cvbilicki_2131 - aq ) 2 NaCl ( aq ) + Br 2 ( l ) 1 (Halogen...

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