Thursday
December 18, 2014

Homework Help: Chemistry

Posted by Caroline on Sunday, April 12, 2009 at 2:10pm.

When dilute nitric acid was added to a solution of one of the following chemicals, a gas was evolved. This gas turned a drop of limewater, Ca(OH)2, cloudy, due to the formation of a white precipitate. The chemical was....
a. the household ammonia NH3
b. baking soda NaHCO3
c. table salt NaCl
d. epsom salts MGSO4 7H2O
e. bleach, 5% NaOCl

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