UnScramble this Word: n a r n t i g i?

Questions

What was created when James Wright blended boric acid and silicon oil?

The practice of turning less-precious metals into silver or gold is known as?

Twisted tightly above a wound, this device is used to halt bleeding by compressing blood vessels?

Wig or patch of false hair worn to conceal a bald spot?

These gourmet mushrooms can be identified by their conical shape and hollow inside?