URGENT PLEASE HELP A 3.00-L flask is filled with propane (C3 H6) at 1.00 atm and -20.0 oC. What is the
mass of the propane in the flask?

One or more substances changing into one or more substances is an example of a

The msds for glacial acetic acid says that it is a flammable liquid that can severely burn any human tissue it comes in contact with. it reacts with bases, various metals, and strong oxidizing agents. its vapors can form explosive mixtures with air.

Which best describes the present-day universe? opaque, expanding very slowly, stars produce heavy elements transparent, expanding at an accelerated rate, stars produce heavy elements opaque, expanding at an accelerated rate, stars produce only hydrogen and helium transparent, expanding very slowly, stars produce only hydrogen and helium