Which is defined as the measure of quantity proportional to the number of atoms

air is made up of mostly O2, N2 and CO2. if the total pressure of the air is 765 mmhg and P (n2) = 600 mmHg and P (CO2) = 38 mmHg then what is the partial pressure of the O2?

Explain what is the process of combustion?

Consider the reaction below. C2H4 (g) + H2 (g) - -> C2H6 (g) Which change would likely cause the greatest increase in the rate of the reaction?

A microwave oven operates at 2.60 GHz. What is the wavelength of the radiation produced?

One percent of the atmosphere is ... gas

What kingdom is humans in!

Propane (C3H8) has a molar mass of 132 g/mole. You started out the day with a tank containing 9071 g of propane. At the end of the day, your tank contained 7532 g of propane gas. How many moles of gas did you use?

Why decomposition of ammonium nitrate is a redox reaction?

Two formulas for compounds containing hydrogen and oxygen are H2O and H2O2. Do these formulas represent the same compound? Explain.

My dog made become frightened and cover when he hears loud thunder this is an example of a reaction to What kind of stimuli A. chemicals B. light C. touch D. sound