what are the primary responsibilities of a chemical engineer involved in "r& d"?
develop large scale manufacturing operations
discover new products and processes
training of new chemists
determine products needed by consumers

Agood hypothesis includes which of the following? a: prediction b: data c: uncertainty d: conclusion

What is the correct term for living the most sustainable life you can within your current circumstances?

If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. currently the material used to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. what is the energy in joules for a photon of light at this wavelength?