How+is+a+precipitate+evidence+for+a+chemical+reaction?+What+are+products+and+reactants?

= Precipitation Reactions = By: Melissa Calderon

Precipitation reaction is basically when two solutions are mixed together, the reactants, and create a solid product (precipitate). Precipitation often happens with double replacement reaction.
= Equation: =

reactant+reactant--->product+product
= Example 1: =

Both reactants form colorless solutions, but when they're poured together the lead iodide, product, is a yellow solid.
==[|Example 1:]==

= Example 2: =

One of the solutions is yellow and the other one is colorless when they're mixed together product is a red-orange solid.




= Resources: = Griffin,. "Chemical Reactions." Rates of Chemical Reactions. Rockford Public Schools, Web. 4 Mar. 2010. .

Beyond Books, Apex Learning Inc.. "Precipitation." Introduction to Chemistry Concepts. 30 July 2007. Web. 4 Mar. 2010. .

Nave, R. Precipitation Reactions. Department of Physics and Astronomy, Aug. 2000. Web. 4 Mar. 2010. .

M, Brian. "Precipitation Reactions." Understanding Chemical Reactions. The Chemistry Hypermedia Project, 3 Mar. 2000. Web. 4 Mar. 2010. .