The reactants of a chemical equation are 3H2 and N2. Which set of atoms must make up the equation's products so that the equation models the law of
conservation of mass?
O A. 8 H and 2 Na
O B. 2 H and 2 Na
O C. 6 H and 2 N
O D. 4 Hg and 3N

When does your body conduct current more readily?

Light traveling in a medium with a refractive index 1.19 is incident on a plate of another medium with index of refraction 1.79. at what angle of incidence is the reflected light fully polarized?

Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.