Most popular questions and responses by Horacio
  1. chem

    Is ammonium hydroxide a strong or weak base and how do you know that? Technically there is no such thing as ammonium hydroxide. NH3 gas (ammonia gas) dissolves easily in water and produces the NH4^+ and the OH^- from the reaction with water. It is a weak

    asked on May 16, 2007
  2. chem

    Help with this one please? If you place a piece of blue litmus paper in 200mL of dilute hydrochloric acid, the litmus paper turns pink. If you then add 2 drops fo phenolphthalein, the solution remains coloreless. If you add a few drops of dilute calcium

    asked on May 15, 2007
  3. chem

    What advantage is there to adding salt to cooking water? and what conditions are necessary for ideal carbonation of a beverage? please help http://www.miniscience.com/projects/Saltwater/index.html http://www.physlink.com/Education/askExperts/ae643.cfm

    asked on May 20, 2007