Imagine a cation exchange column packed with mixture of cations: Pb2+, Ni2+, Sr2+, Co2+ and H+. In which order will they come out at the bottom of the column if an appro-
opriate eluent is allowed to percolate slowly down?

Nickel crystallizes in the face-centered cubic (fcc) lattice. the density of the metal is 8902 kg/m3. calculate the radius of a nickel atom.

3.) for each of the following compounds, draw the major organic product of reaction with hcl or naoh and circle whether the starting materials and products will be more soluble in organic solvent or water benzoic acid + hcl: benzoic acid + naoh: oh benzoic acid water/organic water organic fluorenone hс: fluorenone + naoh: fluorenone water/organic water/organic веnzocaine + hci: benzocaine + n»oh: h2n benzocaine water/organic water organic o=

What is the correct lewis structure for chloroform chcl3