How many collisions does a single a atom, with collision cross section σ=0.36nm2, make in 1.0 s when the temperatre is 25 degree centigrade and the pressure is (a) 10 bar, (b) 100 kpa, (c) 1.0 pa?

If the density of water is 1.0 g/cm3, which of these materials would float in water, based on their densities? check all that apply. aluminum cork iron lead wax

If you had to research a particular disease or area of concern in veterinary medicine and science, which one would you choose? why?

How many moles of sulfuric acid (h2so4) are needed to react completely with 6.8 moles of lithium hydroxide (lioh)? 2lioh + h2so4 → li2so4 + 2h2o a) 3.4 mol h2so4 b) 6.8 mol h2so4 c) 10.2 mol h2so4 d) 13.6 mol h2so4 a) 3.4 mol h2so4