Answer:
its endothermic .
because your using a cooling process instead of a heating process if it was a heating process it would be exothermic
1) chromatography- separation by inner molecular attractions.
2) distillation- separation by boiling point differences.
3) filtration- separation by particle size
4) crystallization- separation by solubility
They react to form salt ZnCl + hydrogen gas
The water dissolves the salt because the water molecules are able to interact with the salt-forming particles, called ions. When the water Interacts with the trainers of the salt ions, the solid salt crystal structure Suffers breakdown, until the trainers of the salt ions are completely surrounded by water molecules. At this time the salt is fully dissolved by water.
hope this helps!
Ok I’m not gonna do anything with my phone I’m gonna send you a picture