Answer:
Strongest Superacid
The world's strongest superacid is fluoroantimonic acid, HSbF6. It is formed by mixing hydrogen fluoride (HF) and antimony pentafluoride (SbF5). Various mixtures produce the superacid, but mixing equal ratios of the two acids produces the strongest superacid known to man.
Extra:
Properties of Fluoroantimonic Acid Superacid
Rapidly and explosively decomposes upon contact with water. Because of this property, fluoroantimonic acid cannot be used in aqueous solution. It is only used in a solution of hydrofluoric acid.
Evolves highly toxic vapors. As the temperature is increased, fluoroantimonic acid decomposes and generates hydrogen fluoride gas (hydrofluoric acid).
1. D (A mental rehearsal, also known as re-thinking things over in your head.)
2. A or B (A is basically stress, but it helps you, so not sure.)
3. D (An Stressor causes stress.)
4. C (Guilt)
5. A. (Personality)
It depends on whether the rash is accompanied by other conditions like swelling or fever. Immediately go to the doctor. Sometimes if the rash is mild, it goes away because it was an allergy or dermatitis or eczema.
Have a good day.