The density of a gas is measured at 1.973g/L at 628.5kPa and 27.3ºC. What is its molar mass?

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange

What is the mass of oxygen gas is consumed in a reaction that produces 4.60mol so2

What is the equation fort the alkaline zinc/manganese dioxide cell. a) anode b)cathode c)overall equations.