Part A: Which of these elements are a solid at 0°C? Which are liquids at °C? Which are gasses at °C? Part B: Compare and contrast the shapes, volumes, and kinetic energies of solids, liquids, and gasses

a polymer is a chainlike molecule made up of small molecular units. these small molecular units are called monomers. monomers of polymer can be joined together either naturally or synthetically.  

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.

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