https://padlet.com/neo_si_lie_charles/odb6lpb6j192 Made with serendipity en-us 2018-01-23 10:38:12 UTC 2018-01-30 07:10:17 UTC hello@padlet.com https://padlet.com/neo_si_lie_charles/odb6lpb6j192/wish/225948578 2018-01-30 06:34:36 UTC https://padlet.com/neo_si_lie_charles/odb6lpb6j192/wish/225948578 https://padlet.com/neo_si_lie_charles/odb6lpb6j192/wish/225948628 2018-01-30 06:35:02 UTC https://padlet.com/neo_si_lie_charles/odb6lpb6j192/wish/225948628 https://padlet.com/neo_si_lie_charles/odb6lpb6j192/wish/225949230 -Used to obtain a pure solid sample from its solution
- Crystallization is an excellent technique for purification of chemical species by solidification from liquid mixtures: many materials are marketed in crystalline form, and a large amount of product may be obtained from impure solutions even in a single step. ]]> 2018-01-30 06:40:39 UTC https://padlet.com/neo_si_lie_charles/odb6lpb6j192/wish/225949230 https://padlet.com/neo_si_lie_charles/odb6lpb6j192/wish/225949423 -As many substances decompose(break down to form simpler substances) upon strong heat.]]> 2018-01-30 06:42:37 UTC https://padlet.com/neo_si_lie_charles/odb6lpb6j192/wish/225949423 https://padlet.com/neo_si_lie_charles/odb6lpb6j192/wish/225949647  where the atoms or molecules are highly organized into a structure known as a crystal. ]]> 2018-01-30 06:44:57 UTC https://padlet.com/neo_si_lie_charles/odb6lpb6j192/wish/225949647 https://padlet.com/neo_si_lie_charles/odb6lpb6j192/wish/225950039 crystallisation is a method that is used to purify solid,for example the salt from the sea water which have many impurities in it.To remove these impurity the process of crystallisation should be used]]> 2018-01-30 06:48:51 UTC https://padlet.com/neo_si_lie_charles/odb6lpb6j192/wish/225950039 https://padlet.com/neo_si_lie_charles/odb6lpb6j192/wish/225950054  Crystallization occurs in two major steps. The first is nucleation, the appearance of a crystalline phase from either a supercooled liquid or a supersaturated solvent. The second step is known as crystal growth, which is the increase in the size of particles and leads to a crystal state. An important feature of this step is that loose particles form layers at the crystal's surface lodge themselves into open inconsistencies such as pores, cracks, etc ]]> 2018-01-30 06:49:01 UTC https://padlet.com/neo_si_lie_charles/odb6lpb6j192/wish/225950054 https://padlet.com/neo_si_lie_charles/odb6lpb6j192/wish/225950440 -  don't get it in your eye, and it can hurt in cuts or abrasions. 
Further, even though the lab NaCl should be pure, never use it on food. Too many people have been killed by being sloppy in the lab, and using chemicals in food or glassware for food containers [eg a flask of coffee] . ]]> 2018-01-30 06:52:36 UTC https://padlet.com/neo_si_lie_charles/odb6lpb6j192/wish/225950440 https://padlet.com/neo_si_lie_charles/odb6lpb6j192/wish/225950992 https://www.youtube.com/watch?v=nztV4w0DtOo]]> 2018-01-30 06:56:31 UTC https://padlet.com/neo_si_lie_charles/odb6lpb6j192/wish/225950992