Question

What wastes are solid, liquid, or gas wastes that are toxic, flammable, corrosive, reactive, or radioactive

Answer 1

Hydrogen Cyanide is a toxic gas, Mercury is a toxic metal, Antimony is a toxic solid.

Gasoline is a flammable liquid, Methane a flammable gas, Wood a flammable solid.

Hydrochloric acid is a corrosive liquid, hydrogen Chloride is a corrosive gas, and there isn't really any corrosive solids.

CO is a reactive gas, nitric acid is a liquid, and Francium (reactive to water, a pea sized amount is said to clear an swimming pool).

Radioactive materials include hard water (liquid; heavy water that has been exposed to radiation), Caesium is a solid, and Radon is a radioactive gas.

All of these in some way shape or form are byproducts of some process.