Which of these reactions is a combustion reaction?

How do you lengthen a pattern piece? (family and consumer science, sewing)

What is the most important factor in determining climates.

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.