How do alkaline water spots form on windows in the Southwest?

Subject: How do alkaline water spots form on windows in the Southwest?

Date: Sat Feb 7 21:11:41 2009
Posted by David Zachary
Grade level: nonaligned School: No school entered.
City: Bee Branch State/Province: AR Country: United States
Area of science: Chemistry
ID: 1234066301.Ch

Message:


Sprinkling a lawn with alkaline water forms hard spots on windows and seem to 
bond to the glass.  What is taking actually place?  What chemicals would be 
involved?  How would one reproduce this in a home workshop for experimenting?  
Thank you

Re: How do alkaline water spots form on windows in the Southwest?

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