A student doing this experiment accidently spilled some of the previously measured copper chloride solution on his hands. he didn't bother to measure the new volume of the solution. briefly explain how this spill would affect the student's determination of the empirical formula of this sample.

nanotechnology is a powerful tool in biomaterials research as it creates numerous possibilities for the engineering of functional molecules. nano-bio refers to projected ability to incorporate biomimicry into various materials at nanoscale.  

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."