Aqueous_Reactions.pdf - Aqueous Reactions S. York Adapted...

This preview shows page 1 - 2 out of 2 pages.

The preview shows page 1 - 2 out of 2 pages.
Aqueous ReactionsS. YorkAdapted from J.A. BeranMany types of chemical reactions take place in aqueous solutions.Onecommon type is known as a metathesis reaction, (also known as a double-replacement or double-displacement reaction).In this type of reaction, thecations and anions of the two reactants are exchanged.The precipitation andacid-base reactions you have studied fall into this category.These reactionsfollow the pattern shown in equation 1, where M and N represent cations, andX and Y represent anions.MX + NYbarb2rightMY + NX(1)Sometimes products that are formed are unstable and decompose, forexample, in equation 2Na2SO3(aq) + 2HCl(aq)barb2right2NaCl(aq) + H2SO3(aq)(2)the sulfurous acid is unstable and immediately decomposes to produce waterand SO2gas.Therefore, the overall net ionic equation for the reaction isshown in equation 3.SO32-(aq)+ 2H+(aq)barb2rightH2O(lscript) + SO2(g)(3)Often, when two substances react in aqueous solution, an observable

Upload your study docs or become a

Course Hero member to access this document

End of preview. Want to read all 2 pages?

Upload your study docs or become a

Course Hero member to access this document

Term
Spring
Professor
Deeter,G
Tags
Chemistry, Chemical reaction

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture