Nacl is a compound that forms a rock salt structure (unit cell at right). the radius of the na+ atoms is 1.16 ǻ; the radius of the cl-atoms is 1.67 ǻ. (1ǻ = 10-10 m). use this information to answer the following questions: a. (2 pts.) how many nearest neighbor ions does each na+ and cl-ion have? b. (4 pts.) calculate the lattice parameter of nacl. c. (6 pts.) sketch the (100) of nacl, as close to scale as possible. use the same color scheme (white and dark) as the model to indicate which atoms are na+ and cl-.

Water (2510 g ) is heated until it just begins to boil. if the water absorbs 5.09×105 j of heat in the process, what was the initial temperature of the water?

Which of the following are correct values for the ideal gas laws constant r

How do cfcs cause ozone depletion? how do cfcs cause ozone depletion? ultraviolet radiation breaks down cfcs, molecules containing chlorine. chlorine then breaks one oxygen atom away from ozone, leaving behind a paired oxygen molecule. ultraviolet radiation breaks down cfcs, molecules containing chlorine. chlorine then breaks two oxygen atoms away from ozone, leaving behind a paired oxygen molecule. ultraviolet radiation creates cfcs, molecules containing chlorine. chlorine then breaks two oxygen atoms away from ozone, leaving behind a paired oxygen molecule. ultraviolet radiation creates cfcs, molecules containing chlorine. chlorine then breaks one oxygen atom away from ozone, leaving behind a paired oxygen molecule.