Which is the best pure substance gold or air?

A1.5l container holds p.50 grams of an unknown gas at a pressure of 0.44 atm and a temperature of 50.c what is the molar mass of the unknown gas

Why is it possible for different microorganisms to extract energy not only from carbohydrates and other biological molecules but from a large variety of substances?

Describe the structure of ammonium lauryl sulfate. refer to the given diagram. your answer should include the type of bonding, the elements contained, and the size and shape of the molecule. write a short paragraph.