Ascientist is examining a mixture of nitrogen, hydrogen, and ammonia. the individual pressures that are exerted by nitrogen and hydrogen are 0.26 atm and 0.28 atm, respectively. if the total pressure is 0.90 atm, what is the partial pressure of ammonia? use  .0.27 atm0.36 atm0.54 atm0.90 atm

Base your answer on the information below and on your knowledge of chemistry. nitrogen dioxide, no2, is a dark brown gas that is used to make nitric acid and to bleach flour. nitrogen dioxide has a boiling point of 294 k at 101.3 kpa. in a rigid cylinder with a movable piston, nitrogen dioxide can be in equilibrium with colorless dinitrogen tetroxide, n2o4. this equilibrium is represented by the equation below. 2no2(g) n2o4(g) + 58kj at standard pressure, compare the strength of intermolecular forces in no2(g) to the strength of intermolecular forces in n2(g).

Which metal exist in liquid state and can be cut with knife ?

If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. currently the material used to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. what is the energy in joules for a photon of light at this wavelength?