four gases were combined in a glass cylinder with these partial pressures:3.5 atm N2,2.8 atm, 0.25 atm At and 0.15 atm He. What is the mole fraction in the mixture? What is the mole fraction of Ar in the mixture?

Consider the reaction of A (g) + B (g) + C (g) = > D (g) for whichthe following data were obtained: Experiment Initial [A], mol/L Initial [B], mol/L Initial [C], mol/L Initial rate, mol/L. s 1 0.0500 0.0500 0.0100 6.25 x 10-3 2 0.100 0.0500 0.0100 2.

Can mixture be broken down? if yes, how?

How is a food web different from a food chain? A) Food webs contain only producers, not consumers B) Food webs do not include decomposers C) Food webs contain many different, linked food chains D) Food webs exist in aquatic environments;

Which case is an atom least likely to bond with other atoms

A piece of iron metal is heated to 155 degrees C and placed into a calorimeter that contains 50.0 mL of water at 18.7 degrees C. The temperature of the water rises to 26.4 degrees C. The specific heat of iron of iron is 0.444 J/g degrees C.

A particular brand of gasoline has a density of 0.737 g/mL at 25 ∘ C. How many grams of this gasoline would fill a 12.8 gal tank (1US gal=3.78L) ?

A pump contains 0.5 l of air at 203 kpa. you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of air in the pump? 0.2 l 1.0 l 2.0 l 4.0 l

How can there be snow near a giraffe's home This is actually science so yeah

If a sealed syringe that contains some gas in heated in which direction will the syringe plunger move

Use the drop‑down menus to label the statements as either true of false. Dichloromethane is flammable. true false Methanol is flammable. Concentrated sulfuric acid is corrosive. 10% sodium carbonate solution must be used in the fume hood.