at what pressure will 1.00 mole of ch4 be in a 10.0 l container at 298 k assuming ch4 is a real gas. (van der waals constants for ch4 are a = 2.253 l2 atm mol-2, b = 0.04278 l mol-1)

Which of the following is described by the equation h2o(s)+ heat=h2o(i) a freezing melting condensing evaporating

Which of the following statements is true? an atom consists of protons, electrons, and neutrons.an atom consists of protons and neutrons.an atom consists of electrons bonded to one another.an atom consists of protons bonded to one another.

15) a substance used in manufacturing gasoline consists of finely divided platinum supported on an inert solid. suppose that the platinum is formed by the high temperature reaction between platinum (iv) oxide and hydrogen gas. the other product is water. a) write and balance the equation b) how many grams of hydrogen are needed to produce 1.0 g of platinum metal? c) how many moles of water are produced at the same time? how many grams? ( show work, .)