Molecular iodine, i2 (g), dissociates into iodine atoms at 545k with a first order rate constant of 0.344 1/s. if you start with 0.054 m i2 at this temperature how much will remain after 5.16 s?

Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change. when the temperature in a room increases from 25°c to 33°c, changes from a solid to a liquid. in a lab, methane and nitrogen are cooled from -170°c to -200°c. the methane freezes and the nitrogen . when gold is heated to 2,856°c it changes from a liquid to a .

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

An alloy contains 66 g of pure zinc. what is the percentage of zinc in the alloy? express your answer to two significant figures and include the appropriate units.