Answer:
D. Purchase the equipment and chemicals you will need
Explanation:
A natural crystalline substance with different chemical and physical characteristics called gems and minerals can be found in expedition done by a gemologist. Gems and minerals are like an ordinary rock in their natural state but polished in order to have more value. They are often used as jewelry.
Sodium chloride and prussic acid are formed
NaCN+HCl→NaCl+HCN
It’s ionic
KCl(at)
Potassium chloride