Search over 10,000 free study notes

Use a clean platinum wire loop. To clean the loop, dip in dilute HCl and hold in flame until the flame burns without any colour. Then dip clean loop into samples. Li+ turns the flame red, Na+ yellow\orang...

More reactive halogens displace less reactive halogens. The more reactive halogens are those at the top of the group, as their outer electron shells (negatively charged) are closer to the nucleus (positiv...

I will explain to students that even though they only need to use three features, it is important to learn and understand all five features to excel in the exam. This way, during the exam, the students ma...

The Avogrados constant the number of atoms in a mole. This is 6.02 x10^23.
The number of moles are calculated through diving the mass (g) by the relative molecular mass of an element.

As the water (the solvent) moves up the paper it carries the ink with it, but the dyes in the ink are differently soluble in the solvent AND the dyes are differently attracted to the paper, therefore the ...