Anonymous asked 5/5/2009 Find All Numbers For Which The Rational Expression Is Not Defined: (x^2-49)/(x^2 +4x-12),can You Help Me ?
Anonymous asked 5/5/2009 What Is A Balanced Equation For Barium Chloride Plus Magnesium Sulfate To Produce Barium Sulfate Plus Sodium Chloride?
Anonymous asked 5/4/2009 What's The Balanced Equation When Zinc Metal Reacts With Copper II Chloride?