John Smithnot asked 12/16/2010 How high can a helium filled balloon reach and how does it end it's journey?
jake marton asked 12/10/2010 The density of acetylene at STP is 1.17g/L. The empirical formula of acetylene is CH. Describe how you can determine the molar mass of acetylene and its molecular formula if you know only its density at STP and its density?
Anonymous asked 12/1/2010 What are the coefficients for the HCl+Mg=MgCl2+H2 when it is properly balanced?
Anonymous asked 11/30/2010 How many grams of Calcium phosphate are theoretically produced if we start with 3.40 moles of Ca(No3)2 and 2.40 moles of Li3PO4?
Anonymous asked 11/30/2010 Given that sodium chloride is 39.0% sodium by mass, how many grams of sodium chloride are needed to have 950mg of Na present?
