The concentration of an NaCl solution (in water) expressed as Molarity is 5.5M. Express this concentration as a mass percent (density soln. = 1.32 g/mL). Express this concentration as a Molality (m).

Which statement is true about ionic compounds?

It takes 945.kj/mol to break a nitrogen-nitrogen triple bond. calculate the maximum wavelength of light for which a nitrogen-nitrogen triple bond could be broken by absorbing a single photon.

Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat