Answer:
1) ammonium chloride and endothermic
2) exothermic
3) hydrated iron oxide and its formation is a slow process
4) evaporation
5) physical
6) undesirable
7) chemical
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Answers & Comments
Answer:
1) ammonium chloride and endothermic
2) exothermic
3) hydrated iron oxide and its formation is a slow process
4) evaporation
5) physical
6) undesirable
7) chemical