The majority of elements found in the periodic table can be classified as

An observation that requires measurement is called quantitative observable or qualitative

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.

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.