The partial pressures of the gases oxygen, hydrogen, and nitrogen are 112 kPa, 101 kPa, and 65 kPa respectively. What is the total pressure exerted by the gas mixture?

2. Identify items in your life that are made of each type of element: metal, nonmetal, and metalloid. For each item, explain why the properties of that type of element are necessary for the function of that item.

List the two main types of energy.

Which level of ecological organization includes both biotic and abiotic factors

Will a precipitate form when solutions of Ba (NO3) 2 and KOH are mixed?

Which layer of the atmosphere contains almost all of the water vapor on Earth?

Calculate the photon energy (in joules) for the light emitted from the hydrogen atom if ninitial = 4 and nfinal = 2.

The distance from one place to another

What is the purpose of a cell membrane

More polar solvents (eluents) move molecules more rapidly than less polar solvents. If you used a 1:1 hexanes:methanol mixture as solvent, would you expect the products to elute faster or slower?

C12 has 6 protons. how many neutrons does c13 have? a. 6 b. 7 c. 13 d. 19