Can someone help me with these?

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.

What volume would 2.25 moles of ne has occupy at stp?

Which of the following words describe the reality that the universe looks the same from various perspective