Two chromatograms showing the same pattern would probably
be made by the SAME DYE
be made by DIFFERENT DYES
just be a COINCIDENCE
show NOTHING USEFUL

The density of water is 1 g/cm cubed and in order for the pebble to sink its density has to be greater than the density of water and in order for the twig to float its density has to be less than the density of water

I'm sorry but i'm only grade

Answerbonded to an amino group(nh2);