Popular questions and responses by yellowone
  1. chemistry help asap!

    Suppose you are studying coordination compounds of Co(II) with the ligand pyridine (py, C5H5N, MW = 79.10). You isolate a crystalline compound and since the only available ions are chloride and nitrate, you hypothesize the empirical formula of the

    asked on April 23, 2007

    how many grams of zinc are required to react with excess acid to make one liter of hydrogen at STP? i have no clue how to go about this i need help Write the balanced equation. Zn + 2HCl ==> ZnCl2 + H2 2. Use PV = nRT to convert 1 L H2 gas to mols OR take

    asked on April 23, 2007
  3. chemistry

    out of H2Se SiO2 H2O CO2 which of these does not arrange itself into tetrahedral environment when bonding ins a solid state? ok i don't know i need help with this big time There is electronic geometry as well as molecular geometry. The question doesn't

    asked on April 23, 2007