Copper(II) bromide | Br2Cu - PubChem. (n.d.). Retrieved February 14, 2017, from https://pubchem.ncbi.nlm.nih.gov/compound/Copper_II__bromide#section=Threshold-Limit-Values
We Used this source, because it came from a government site, that specializes in chemistry, and had useful information, on how copper bromide is supposed to react when mixed with other chemicals.
Chemical 4 (L4): Copper (II) Sulfate
We know this is Copper Sulfate because when mixed with Lead Nitrate it turn a Blue solid, two things that didn't happen in the previous experiment, like our predictions.
1Cu(SO4) + 1Pb(NO3)2 ➔ 1Cu(NO3)2 + 1Pb(SO4)