How many mole are in 2.84*10^22 molecules of h2

Which of the following is the correct expression for the rate of the following reaction

If Thomson's atomic theory was accurate, what would the results of Rutherford's gold foil experiment have been

If you can choose any animal in the world to be, what animal would you choose. (I'd be a wolf or a dog, mostly a wolf)

Consider a mixture of 3 gases (Helium, Argon, and Nitrogen). Helium has mole fraction of 0.28. Argon has a partial pressure of 450 kPa. There are 7.5 moles of Nitrogen. The total pressure is 1470 kPa. Determine: a.

Both white phosphorus and red phosphorus are made up only of phosphorus atoms. Does this mean they are both pure substances? Could they be compounds?

Which has the highest viscory? Milk? Water? Orange juice?

What was venter's comtributionto science?

How many atoms are in 151 g of calcium?

Which statements about the formation of the solar system are true and in a correct order? A. A black hole collapsed to form the sun; small planetary objects formed; small planetary objects collided with each other to form larger objects. B.

Which is an important step in the alternate method for balancing equations in redox reactions? a) indicating the types of bonds found in the molecules. b) determining the speed at which reactions take place.